566(top 0.1%)
papers
44.1K(top 0.1%)
citations
104(top 0.1%)
h-index
193(top 0.1%)
g-index
582
all documents
47.1K
doc citations
2.8K
citing journals
105
times ranked
Filter by:Articles (Lifetime) (6) | Articles (per year) (25) | Citations (Lifetime) (15) | Citations (per year) (75) | Most Cited Article (Lifetime) (23) | Most Cited Article (per year) (109) | Low Rankings (Lifetime) (47) | Low Rankings (per year) (281) |
1st most cited paper in Clinical Orthopaedics and Related Research (2003) [with 2847 citations of an article]
1st most cited paper in Clinical Orthopaedics and Related Research (2004) [with 1189 citations of an article]
1st most published author in Clinical Orthopaedics and Related Research (2007) [with 6 articles having 336 citations]
1st most cited author in Clinical Orthopaedics and Related Research (2008) [with 1617 citations of 5 articles]
1st most published author in Clinical Orthopaedics and Related Research (2010) [with 9 articles having 1339 citations]
1st most published author in Clinical Orthopaedics and Related Research (2011) [with 13 articles having 2821 citations]
1st most cited author in Clinical Orthopaedics and Related Research (2011) [with 2821 citations of 13 articles]
1st most cited paper in Clinical Orthopaedics and Related Research (2011) [with 2821 citations of an article]
1st most published author in Clinical Orthopaedics and Related Research (2012) [with 9 articles having 572 citations]
1st most cited author in Clinical Orthopaedics and Related Research (2013) [with 1315 citations of 14 articles]
1st most cited author in Clinical Orthopaedics and Related Research (lifetime) [with 14664 citations of 101 articles]
1st most cited paper in Clinical Orthopaedics and Related Research (lifetime) [with 14664 citations of an article]
1st most published author in Journal of Arthroplasty (2008) [with 7 articles having 1481 citations]
1st most cited author in Journal of Arthroplasty (2008) [with 1481 citations of 7 articles]
1st most cited paper in Journal of Arthroplasty (2008) [with 1481 citations of an article]
1st most cited author in Journal of Arthroplasty (2009) [with 948 citations of 3 articles]
1st most cited paper in Journal of Arthroplasty (2009) [with 948 citations of an article]
1st most published author in Journal of Arthroplasty (2010) [with 8 articles having 958 citations]
1st most cited author in Journal of Arthroplasty (2010) [with 958 citations of 8 articles]
1st most cited paper in Journal of Arthroplasty (2010) [with 958 citations of an article]
1st most cited author in Journal of Arthroplasty (2011) [with 443 citations of 5 articles]
1st most published author in Journal of Arthroplasty (2012) [with 10 articles having 1802 citations]
1st most cited author in Journal of Arthroplasty (2012) [with 1802 citations of 10 articles]
1st most cited paper in Journal of Arthroplasty (2012) [with 1802 citations of an article]
1st most cited author in Journal of Arthroplasty (2013) [with 432 citations of 6 articles]
1st most published author in Journal of Arthroplasty (2014) [with 13 articles having 996 citations]
1st most cited author in Journal of Arthroplasty (2014) [with 996 citations of 13 articles]
1st most cited paper in Journal of Arthroplasty (2014) [with 996 citations of an article]
1st most published author in Journal of Arthroplasty (2017) [with 19 articles having 759 citations]
1st most cited paper in Journal of Arthroplasty (2018) [with 2347 citations of an article]
1st most published author in Journal of Arthroplasty (2019) [with 24 articles having 746 citations]
1st most cited author in Journal of Arthroplasty (2019) [with 746 citations of 24 articles]
1st most published author in Journal of Arthroplasty (2020) [with 16 articles having 379 citations]
1st most published author in Journal of Arthroplasty (lifetime) [with 201 articles having 13571 citations]
1st most cited author in Journal of Arthroplasty (lifetime) [with 13571 citations of 201 articles]
1st most cited paper in Journal of Arthroplasty (lifetime) [with 13571 citations of an article]
1st most cited author in Journal of Orthopaedic Research (1996) [with 308 citations of 1 articles]
1st most cited paper in Journal of Orthopaedic Research (1996) [with 308 citations of an article]
1st most cited author in International Orthopaedics (2008) [with 374 citations of 1 articles]
1st most cited paper in International Orthopaedics (2008) [with 374 citations of an article]
1st most cited paper in International Orthopaedics (lifetime) [with 690 citations of an article]
1st most cited author in Journal of Bone and Joint Surgery - Series A (2011) [with 1006 citations of 5 articles]
1st most published author in Journal of Bone and Joint Surgery - Series A (2013) [with 9 articles having 1255 citations]
1st most cited author in Journal of Bone and Joint Surgery - Series A (2013) [with 1255 citations of 9 articles]
1st most cited paper in Journal of Bone and Joint Surgery - Series A (2013) [with 1255 citations of an article]
1st most cited author in Journal of Bone and Joint Surgery - Series A (2014) [with 783 citations of 6 articles]
1st most cited author in Journal of Knee Surgery (2014) [with 231 citations of 2 articles]
1st most cited paper in Journal of Knee Surgery (2014) [with 231 citations of an article]
1st most cited author in Journal of the American Academy of Orthopaedic Surgeons, The (2007) [with 208 citations of 1 articles]
1st most cited paper in Journal of the American Academy of Orthopaedic Surgeons, The (2007) [with 208 citations of an article]
1st most cited author in Journal of the American Academy of Orthopaedic Surgeons, The (2010) [with 526 citations of 2 articles]
1st most cited paper in Journal of the American Academy of Orthopaedic Surgeons, The (2010) [with 526 citations of an article]
1st most cited author in Orthopedic Clinics of North America (2016) [with 240 citations of 4 articles]
1st most cited paper in Orthopedic Clinics of North America (2016) [with 240 citations of an article]
1st most cited author in Indian Journal of Orthopaedics (2013) [with 102 citations of 1 articles]
1st most cited paper in Indian Journal of Orthopaedics (2013) [with 102 citations of an article]
1st most cited paper in Current Reviews in Musculoskeletal Medicine (2018) [with 117 citations of an article]
1st most cited author in JBJS Open Access (2018) [with 183 citations of 1 articles]
1st most cited paper in JBJS Open Access (2018) [with 183 citations of an article]
1st most cited author in JBJS Open Access (lifetime) [with 200 citations of 4 articles]
1st most cited paper in JBJS Open Access (lifetime) [with 200 citations of an article]
2nd most cited paper in Clinical Orthopaedics and Related Research (2008) [with 1617 citations of an article]
2nd most cited author in Clinical Orthopaedics and Related Research (2010) [with 1339 citations of 9 articles]
2nd most cited author in Clinical Orthopaedics and Related Research (2012) [with 572 citations of 9 articles]
2nd most published author in Clinical Orthopaedics and Related Research (2013) [with 14 articles having 1315 citations]
2nd most cited author in Journal of Arthroplasty (2007) [with 342 citations of 3 articles]
2nd most cited paper in Journal of Arthroplasty (2007) [with 342 citations of an article]
2nd most published author in Journal of Arthroplasty (2013) [with 6 articles having 432 citations]
2nd most published author in Journal of Arthroplasty (2015) [with 8 articles having 474 citations]
2nd most published author in Journal of Arthroplasty (2016) [with 13 articles having 545 citations]
2nd most published author in Journal of Arthroplasty (2018) [with 27 articles having 2347 citations]
2nd most cited author in Journal of Arthroplasty (2018) [with 2347 citations of 27 articles]
2nd most cited paper in Journal of Arthroplasty (2019) [with 746 citations of an article]
2nd most published author in Journal of Bone and Joint Surgery - Series A (2007) [with 6 articles having 402 citations]
2nd most published author in Journal of Bone and Joint Surgery - Series A (2017) [with 6 articles having 580 citations]
2nd most published author in Journal of Bone and Joint Surgery - Series A (2019) [with 8 articles having 301 citations]
2nd most published author in Journal of Bone and Joint Surgery - Series A (2020) [with 8 articles having 256 citations]
2nd most published author in Journal of Bone and Joint Surgery - Series A (lifetime) [with 93 articles having 8429 citations]
2nd most cited author in Journal of Bone and Joint Surgery - Series A (lifetime) [with 8429 citations of 93 articles]
2nd most cited paper in Journal of Knee Surgery (lifetime) [with 364 citations of an article]
2nd most cited author in Current Reviews in Musculoskeletal Medicine (2018) [with 117 citations of 1 articles]
2nd most cited paper in Journal of Long-Term Effects of Medical Implants (2007) [with 22 citations of an article]
3rd most cited author in Clinical Orthopaedics and Related Research (2003) [with 2847 citations of 1 articles]
3rd most cited author in Clinical Orthopaedics and Related Research (2004) [with 1189 citations of 5 articles]
3rd most published author in Clinical Orthopaedics and Related Research (2014) [with 8 articles having 633 citations]
3rd most cited author in Clinical Orthopaedics and Related Research (2014) [with 633 citations of 8 articles]
3rd most published author in Clinical Orthopaedics and Related Research (lifetime) [with 101 articles having 14664 citations]
3rd most cited author in Journal of Arthroplasty (2004) [with 257 citations of 3 articles]
3rd most cited author in Journal of Arthroplasty (2006) [with 215 citations of 4 articles]
3rd most cited author in Journal of Arthroplasty (2017) [with 759 citations of 19 articles]
3rd most cited author in Journal of Arthroplasty (2020) [with 379 citations of 16 articles]
3rd most cited author in Journal of Bone and Joint Surgery - Series A (2017) [with 580 citations of 6 articles]
3rd most cited paper in Diagnostic Microbiology and Infectious Disease (2015) [with 73 citations of an article]
3rd most cited paper in JAMA Surgery (2017) [with 2099 citations of an article]
3rd most cited paper in JAMA Surgery (lifetime) [with 2099 citations of an article]
3rd most cited author in Journal of Diabetes Science and Technology (2011) [with 208 citations of 1 articles]
3rd most cited paper in Journal of Diabetes Science and Technology (2011) [with 208 citations of an article]
3rd most cited paper in Arthroplasty Today (2018) [with 39 citations of an article]
3rd most cited paper in Acta Orthopaedica Belgica (2008) [with 48 citations of an article]
4th most cited author in Clinical Orthopaedics and Related Research (2007) [with 336 citations of 6 articles]
4th most cited paper in Clinical Orthopaedics and Related Research (2010) [with 1339 citations of an article]
4th most cited author in International Journal of Infectious Diseases (2009) [with 162 citations of 1 articles]
4th most cited paper in International Journal of Infectious Diseases (2009) [with 162 citations of an article]
4th most cited author in Journal of Arthroplasty (2015) [with 474 citations of 8 articles]
4th most cited paper in Journal of Orthopaedic Research (2021) [with 70 citations of an article]
4th most cited author in Journal of Bone and Joint Surgery - Series A (2018) [with 416 citations of 5 articles]
4th most cited author in Journal of Bone and Joint Surgery - Series A (2019) [with 301 citations of 8 articles]
4th most cited author in JAMA Surgery (2017) [with 2099 citations of 1 articles]
4th most cited author in Journal of the American Academy of Orthopaedic Surgeons, The (lifetime) [with 903 citations of 5 articles]
4th most cited author in Orthopedics (2010) [with 110 citations of 1 articles]
4th most cited paper in Orthopedics (2010) [with 110 citations of an article]
4th most cited paper in The Open Orthopaedics Journal (2016) [with 56 citations of an article]
4th most cited paper in Archives of Bone and Joint Surgery (2015) [with 61 citations of an article]
5th most cited author in Journal of Arthroplasty (2016) [with 545 citations of 13 articles]
5th most published author in Journal of Bone and Joint Surgery - Series A (2014) [with 6 articles having 783 citations]
5th most cited paper in Journal of Knee Surgery (2015) [with 86 citations of an article]
6th most cited paper in Clinical Orthopaedics and Related Research (2013) [with 1315 citations of an article]
6th most cited paper in Monthly Notices of the Royal Astronomical Society: Letters (2008) [with 252 citations of an article]
6th most cited author in Journal of Bone and Joint Surgery - Series A (2006) [with 573 citations of 3 articles]
6th most cited paper in Orthopaedic Surgery (2012) [with 25 citations of an article]
6th most cited paper in Knee Surgery and Related Research (2013) [with 39 citations of an article]
6th most cited paper in Instructional Course Lectures (2009) [with 49 citations of an article]
7th most cited paper in Journal of Arthroplasty (2000) [with 111 citations of an article]
7th most published author in Journal of Arthroplasty (2021) [with 18 articles having 116 citations]
7th most cited paper in Journal of Orthopaedic Research (2019) [with 189 citations of an article]
7th most cited paper in Journal of Long-Term Effects of Medical Implants (2014) [with 44 citations of an article]
8th most cited author in Clinical Orthopaedics and Related Research (1999) [with 216 citations of 1 articles]
8th most cited paper in Clinical Orthopaedics and Related Research (1999) [with 216 citations of an article]
8th most cited author in Clinical Orthopaedics and Related Research (2009) [with 545 citations of 5 articles]
8th most published author in Journal of Arthroplasty (2022) [with 11 articles having 84 citations]
8th most cited paper in Indian Journal of Orthopaedics (lifetime) [with 102 citations of an article]
9th most cited author in Clinical Orthopaedics and Related Research (2006) [with 257 citations of 5 articles]
9th most cited author in Journal of Arthroplasty (2000) [with 111 citations of 1 articles]
9th most cited author in Monthly Notices of the Royal Astronomical Society: Letters (2008) [with 252 citations of 2 articles]
9th most cited paper in Journal of Shoulder and Elbow Surgery (2015) [with 187 citations of an article]
9th most cited paper in Journal of Orthopaedic Research (1999) [with 210 citations of an article]
9th most cited paper in Journal of Bone and Joint Surgery - Series A (2018) [with 416 citations of an article]
9th most cited author in JAMA Surgery (lifetime) [with 2099 citations of 1 articles]
9th most cited paper in Journal of the American Academy of Orthopaedic Surgeons, The (2009) [with 150 citations of an article]
10th most cited paper in Journal of Arthroplasty (2003) [with 88 citations of an article]
10th most cited paper in Journal of Arthroplasty (2011) [with 443 citations of an article]
10th most cited author in International Orthopaedics (lifetime) [with 690 citations of 6 articles]
10th most cited paper in Journal of Orthopaedic Trauma (2008) [with 112 citations of an article]
11th most cited paper in Clinical Orthopaedics and Related Research (2014) [with 633 citations of an article]
11th most cited paper in Journal of Arthroplasty (2004) [with 257 citations of an article]
11th most cited paper in Journal of Arthroplasty (2022) [with 84 citations of an article]
11th most cited author in Journal of the American Academy of Orthopaedic Surgeons, The (2009) [with 150 citations of 1 articles]
12th most cited author in Clinical Orthopaedics and Related Research (2017) [with 265 citations of 5 articles]
12th most cited paper in Journal of Arthroplasty (2006) [with 215 citations of an article]
12th most cited paper in Journal of Arthroplasty (2013) [with 432 citations of an article]
12th most cited author in Journal of Orthopaedic Research (2019) [with 189 citations of 1 articles]
12th most cited paper in Journal of Bone and Joint Surgery - Series A (2014) [with 783 citations of an article]
12th most cited author in Journal of Bone and Joint Surgery - Series A (2020) [with 256 citations of 8 articles]
12th most cited author in Journal of Orthopaedic Trauma (2008) [with 112 citations of 1 articles]
12th most cited paper in Journal of Knee Surgery (2011) [with 46 citations of an article]
13th most cited author in Journal of Orthopaedic Research (1999) [with 210 citations of 1 articles]
13th most cited paper in Journal of the American Academy of Orthopaedic Surgeons, The (lifetime) [with 903 citations of an article]
13th most published author in Orthopedic Clinics of North America (lifetime) [with 6 articles having 241 citations]
14th most cited paper in International Orthopaedics (2011) [with 171 citations of an article]
14th most cited author in World Journal of Orthopedics (2015) [with 166 citations of 1 articles]
14th most cited paper in World Journal of Orthopedics (2015) [with 166 citations of an article]
15th most cited author in Journal of Bone and Joint Surgery - Series A (2004) [with 484 citations of 5 articles]
15th most published author in Archives of Bone and Joint Surgery (lifetime) [with 8 articles having 94 citations]
16th most cited author in Journal of Infection (2019) [with 107 citations of 2 articles]
16th most cited author in International Orthopaedics (2011) [with 171 citations of 1 articles]
16th most cited paper in Journal of Bone and Joint Surgery - Series A (2006) [with 573 citations of an article]
16th most cited author in Journal of Bone and Joint Surgery - Series A (2007) [with 402 citations of 6 articles]
16th most cited paper in Bone and Joint Journal (2020) [with 64 citations of an article]
16th most cited paper in Archives of Bone and Joint Surgery (lifetime) [with 94 citations of an article]
17th most cited paper in Clinical Orthopaedics and Related Research (2005) [with 127 citations of an article]
17th most cited author in Orthopedic Clinics of North America (lifetime) [with 241 citations of 6 articles]
17th most cited paper in Orthopedics (2013) [with 53 citations of an article]
17th most cited paper in Journal of Long-Term Effects of Medical Implants (lifetime) [with 66 citations of an article]
18th most cited paper in Clinical Orthopaedics and Related Research (2012) [with 572 citations of an article]
18th most cited author in Clinical Orthopaedics and Related Research (2015) [with 275 citations of 4 articles]
18th most cited author in Journal of Knee Surgery (lifetime) [with 364 citations of 6 articles]
18th most cited paper in Acta Orthopaedica Belgica (lifetime) [with 48 citations of an article]
19th most cited paper in Journal of Bone and Joint Surgery - Series A (2017) [with 580 citations of an article]
20th most cited paper in Journal of Infection (2019) [with 107 citations of an article]
20th most cited paper in EFORT Open Reviews (2019) [with 46 citations of an article]
20th most cited paper in World Journal of Orthopedics (lifetime) [with 166 citations of an article]
21st most cited author in Clinical Orthopaedics and Related Research (2005) [with 127 citations of 1 articles]
21st most cited paper in Journal of Bone and Joint Surgery - Series A (2011) [with 1006 citations of an article]
21st most cited author in Journal of Bone and Joint Surgery - Series A (2012) [with 361 citations of 2 articles]
22nd most cited author in Journal of Arthroplasty (2021) [with 116 citations of 18 articles]
22nd most cited paper in Journal of Orthopaedic Research (2002) [with 136 citations of an article]
23rd most cited paper in Clinical Orthopaedics and Related Research (2015) [with 275 citations of an article]
23rd most cited paper in Surgical Clinics of North America (2014) [with 33 citations of an article]
23rd most cited paper in Clinical Medicine and Research (2007) [with 35 citations of an article]
24th most cited paper in Current Reviews in Musculoskeletal Medicine (lifetime) [with 126 citations of an article]
25th most cited paper in Journal of Bone and Joint Surgery - Series A (2000) [with 78 citations of an article]
25th most cited author in Journal of Bone and Joint Surgery - Series A (2003) [with 348 citations of 5 articles]
25th most cited author in Indian Journal of Orthopaedics (lifetime) [with 102 citations of 1 articles]
27th most cited paper in International Journal of Artificial Organs (2012) [with 40 citations of an article]
27th most cited paper in Orthopedics (lifetime) [with 170 citations of an article]
28th most cited author in Journal of Shoulder and Elbow Surgery (2015) [with 187 citations of 1 articles]
29th most cited author in World Journal of Orthopedics (lifetime) [with 166 citations of 1 articles]
30th most cited paper in Clinical Orthopaedics and Related Research (2016) [with 100 citations of an article]
30th most cited paper in Journal of Bone and Joint Surgery - Series A (2007) [with 402 citations of an article]
30th most cited paper in EFORT Open Reviews (2016) [with 56 citations of an article]
31st most cited paper in Journal of Arthroplasty (2015) [with 474 citations of an article]
31st most cited author in Journal of Bone and Joint Surgery - Series A (2009) [with 323 citations of 2 articles]
31st most cited paper in The Open Orthopaedics Journal (lifetime) [with 56 citations of an article]
32nd most cited author in Journal of Orthopaedic Research (2002) [with 136 citations of 1 articles]
33rd most cited paper in Arthroplasty Today (lifetime) [with 45 citations of an article]
34th most cited paper in Journal of Bone and Joint Surgery - Series A (2012) [with 361 citations of an article]
35th most cited paper in Expert Review of Medical Devices (2007) [with 34 citations of an article]
36th most cited paper in Clinical Orthopaedics and Related Research (2009) [with 545 citations of an article]
36th most cited author in Orthopedics (lifetime) [with 170 citations of 3 articles]
37th most cited paper in Journal of Bone and Joint Surgery - Series A (2001) [with 151 citations of an article]
37th most cited paper in Journal of Diabetes Science and Technology (lifetime) [with 208 citations of an article]
38th most cited paper in Journal of Orthopaedic Surgery and Research (2018) [with 54 citations of an article]
38th most cited paper in Orthopedic Clinics of North America (lifetime) [with 241 citations of an article]
39th most cited paper in Journal of Arthroplasty (2005) [with 48 citations of an article]
39th most cited author in Journal of Bone and Joint Surgery - Series A (2001) [with 151 citations of 1 articles]
40th most cited paper in Journal of Bone and Joint Surgery - Series A (2022) [with 40 citations of an article]
40th most cited author in Current Reviews in Musculoskeletal Medicine (lifetime) [with 126 citations of 2 articles]
42nd most cited paper in Knee Surgery and Related Research (lifetime) [with 42 citations of an article]
44th most cited paper in Knee (2015) [with 35 citations of an article]
45th most cited paper in Clinical Orthopaedics and Related Research (2017) [with 265 citations of an article]
47th most cited author in Journal of Bone and Joint Surgery - Series A (2008) [with 310 citations of 3 articles]
47th most cited paper in Instructional Course Lectures (lifetime) [with 69 citations of an article]
48th most cited paper in Journal of Shoulder and Elbow Surgery (2019) [with 58 citations of an article]
48th most cited paper in Journal of Bone and Joint Surgery - Series A (2015) [with 169 citations of an article]
49th most cited paper in Journal of Orthopaedic Trauma (2011) [with 43 citations of an article]
51st most cited paper in Clinical Orthopaedics and Related Research (2007) [with 336 citations of an article]
51st most cited paper in Journal of Bone and Joint Surgery - Series A (2008) [with 310 citations of an article]
52nd most cited paper in Expert Review of Molecular Diagnostics (2020) [with 24 citations of an article]
54th most cited paper in Journal of Bone and Joint Surgery - Series A (2003) [with 348 citations of an article]
54th most cited author in Journal of Bone and Joint Surgery - Series A (2016) [with 134 citations of 2 articles]
55th most cited paper in International Orthopaedics (2020) [with 51 citations of an article]
56th most cited paper in American Journal of Infection Control (2017) [with 41 citations of an article]
57th most cited paper in Journal of Arthroplasty (2020) [with 379 citations of an article]
59th most cited author in Journal of Bone and Joint Surgery - Series A (2010) [with 262 citations of 3 articles]
61st most cited paper in Clinical Orthopaedics and Related Research (2002) [with 87 citations of an article]
62nd most cited paper in Journal of Arthroplasty (2017) [with 759 citations of an article]
63rd most cited paper in Clinical Orthopaedics and Related Research (2006) [with 257 citations of an article]
63rd most cited paper in Journal of Bone and Joint Surgery - Series A (2020) [with 256 citations of an article]
63rd most cited author in EFORT Open Reviews (lifetime) [with 102 citations of 2 articles]
64th most cited author in Journal of Bone and Joint Surgery - Series A (2005) [with 162 citations of 2 articles]
64th most cited paper in Journal of Bone and Joint Surgery - Series A (2009) [with 323 citations of an article]
64th most cited author in Journal of Bone and Joint Surgery - Series A (2015) [with 169 citations of 1 articles]
65th most cited paper in Journal of Bone and Joint Surgery - Series A (2004) [with 484 citations of an article]
66th most cited author in Journal of Orthopaedic Research (lifetime) [with 917 citations of 8 articles]
68th most published author in Journal of Knee Surgery (lifetime) [with 6 articles having 364 citations]
73rd most cited paper in Journal of Arthroplasty (2016) [with 545 citations of an article]
82nd most cited paper in International Journal of Artificial Organs (2011) [with 23 citations of an article]
87th most cited paper in International Orthopaedics (2017) [with 43 citations of an article]
90th most cited paper in Clinical Orthopaedics and Related Research (2018) [with 42 citations of an article]
90th most cited paper in Clinical Medicine and Research (lifetime) [with 35 citations of an article]
91st most cited paper in Journal of Orthopaedic Research (lifetime) [with 917 citations of an article]
94th most cited paper in EFORT Open Reviews (lifetime) [with 102 citations of an article]
99th most cited paper in Clinical Orthopaedics and Related Research (2019) [with 30 citations of an article]