| Effects of the COVID-19 pandemic on maternal and perinatal outcomes: a systematic review and meta-analysis | The Lancet Global Health | 2021 | 189 |
| Association of Convalescent Plasma Treatment With Clinical Outcomes in Patients With COVID-19: A Systematic Review and Meta-analysis | JAMA - Journal of the American Medical Association | 2021 | 110 |
| COVID-19 vaccination during pregnancy: coverage and safety | American Journal of Obstetrics and Gynecology | 2021 | 61 |
| An early warning approach to monitor COVID-19 activity with multiple digital traces in near real time | Science Advances | 2021 | 44 |
| Immunogenicity of the BNT162b2 vaccine in frail or disabled nursing home residents: COVID-A study | Journal of the American Geriatrics Society | 2021 | 30 |
| Benchmarking Computational Doublet-Detection Methods for Single-Cell RNA Sequencing Data | Cell Systems | 2021 | 26 |
| Assessment of transparency indicators across the biomedical literature: How open is open? | PLoS Biology | 2021 | 19 |
| Non-B DNA: a major contributor to small- and large-scale variation in nucleotide substitution frequencies across the genome | Nucleic Acids Research | 2021 | 17 |
| Effect estimates of COVID-19 non-pharmaceutical interventions are non-robust and highly model-dependent | Journal of Clinical Epidemiology | 2021 | 16 |
| No Benefit of Concomitant Immunomodulator Therapy on Efficacy of Biologics That Are Not Tumor Necrosis Factor Antagonists in Patients With Inflammatory Bowel Diseases: A Meta-analysis | Clinical Gastroenterology and Hepatology | 2021 | 15 |
| Epidemiology and risk factors for the development of cutaneous toxicities in patients treated with immune-checkpoint inhibitors: A United States population-level analysis | Journal of the American Academy of Dermatology | 2021 | 12 |
| Prognoses and genomic analyses of proteasome 26S subunit, ATPase (PSMC) family genes in clinical breast cancer | Aging | 2021 | 12 |
| A Comparative Analysis of Statistical Methods to Estimate the Reproduction Number in Emerging Epidemics, With Implications for the Current Coronavirus Disease 2019 (COVID-19) Pandemic | Clinical Infectious Diseases | 2021 | 11 |
| Access to data from clinical trials in the COVID-19 crisis: open, flexible, and time-sensitive | Journal of Clinical Epidemiology | 2021 | 10 |
| Impact of the Covid-19 pandemic on perinatal mental health (Riseup-PPD-COVID-19): protocol for an international prospective cohort study | BMC Public Health | 2021 | 10 |
| The multiplicity of analysis strategies jeopardizes replicability: lessons learned across disciplines | Royal Society Open Science | 2021 | 9 |
| Baricitinib reduces 30-day mortality in older adults with moderate-to-severe COVID-19 pneumonia | Journal of the American Geriatrics Society | 2021 | 9 |
| Evaluation of Ureteroenteric Anastomotic Strictures after the Introduction of Robot-Assisted Radical Cystectomy with Intracorporeal Urinary Diversion: Results from a Large Tertiary Referral Center | Journal of Urology | 2021 | 8 |
| Media and social media attention to retracted articles according to Altmetric | PLoS ONE | 2021 | 8 |
| Transcriptome-wide transmission disequilibrium analysis identifies novel risk genes for autism spectrum disorder | PLoS Genetics | 2021 | 7 |
| An examination of school reopening strategies during the SARS-CoV-2 pandemic | PLoS ONE | 2021 | 6 |
| Duodenal mucosal resurfacing combined with glucagon-like peptide-1 receptor agonism to discontinue insulin in type 2 diabetes: a feasibility study | Gastrointestinal Endoscopy | 2021 | 6 |
| Longitudinal Outcomes of Severe Asthma: Real-World Evidence of Multidimensional Analyses | Journal of Allergy and Clinical Immunology: in Practice | 2021 | 6 |
| Compositional knockoff filter for high-dimensional regression analysis of microbiome data | Biometrics | 2021 | 5 |
| Sensitization to Common Allergens Among Children with Asthma and Allergic Rhinitis in Qatar | Journal of Asthma and Allergy | 2021 | 5 |
