1.9(top 20%)
impact factor
9.8K(top 2%)
papers
182.1K(top 2%)
citations
127(top 5%)
h-index
2.0(top 20%)
impact factor
11.6K
all documents
189.1K
doc citations
180(top 5%)
g-index

Top Articles

#TitleJournalYearCitations
1Contraceptive failure in the United StatesContraception20111,184
2Unintended pregnancy in the United States: incidence and disparities, 2006Contraception20111,041
3A vaginal fluid simulantContraception1999598
4Levonorgestrel-releasing and copper-releasing (Nova T) IUDs during five years of use: A randomized comparative trialContraception1994471
5Pregnancy coercion, intimate partner violence and unintended pregnancyContraception2010464
6The safety of a drospirenone-containing oral contraceptive: final results from the European Active Surveillance study on Oral Contraceptives based on 142,475 women-years of observationContraception2007417
7On the history of hormonal contraception I. Ludwig Haberlandt (1885–1932) and his concept of “hormonal sterilization”Contraception1970390
8Estimates of contraceptive failure from the 2002 National Survey of Family GrowthContraception2008388
9On the history of hormonal contraception II. Otfried Otto Fellner (1873-19??) and estrogens as antifertility hormonesContraception1971384
10Contraceptive method use in the United States: trends and characteristics between 2008, 2012 and 2014Contraception2018345
11Contraceptive failure in the United StatesContraception2004338
12Radioimmunoassay of serum progesterone in women receiving oral contraceptive steroidsContraception1972334
13Unintended pregnancy and associated maternal preconception, prenatal and postpartum behaviorsContraception2009326
14Drospirenone: pharmacology and pharmacokinetics of a unique progestogenContraception2000318
15Cardiovascular disease and use of oral and injectable progestogen-only contraceptives and combined injectable contraceptivesContraception1998295
16Likelihood of conception with a single act of intercourse: providing benchmark rates for assessment of post-coital contraceptivesContraception2001295
17Use and misuse of oral contraceptives: Risk indicators for poor pill taking and discontinuationContraception1995294
18Oral contraceptives and venous thromboembolism: a five-year national case-control study☆Contraception2002289
19Comparison of ethinylestradiol pharmacokinetics in three hormonal contraceptive formulations: the vaginal ring, the transdermal patch and an oral contraceptiveContraception2005287
20A prospective study of the effects of oral contraceptives on sexuality and well-being and their relationship to discontinuationContraception2001281
21Can we identify women at risk of pregnancy despite using emergency contraception? Data from randomized trials of ulipristal acetate and levonorgestrelContraception2011271
22Progesterone receptor blockageContraception1985263
23Cost effectiveness of contraceptives in the United StatesContraception2009258
24Age of sexual debut among US adolescentsContraception2009239
25Antioxidant superoxide dismutase - a review: its function, regulation in the testis, and role in male fertilityContraception2002238
26Abortion and long-term mental health outcomes: a systematic review of the evidenceContraception2008237
27Acceptance of long-acting reversible contraceptive methods by adolescent participants in the Contraceptive CHOICE ProjectContraception2011237
28Consensus statement on the use of breastfeeding as a family planning methodContraception1989235
29A multicenter, randomized study of an extended cycle oral contraceptiveContraception2003234
30Plasma concentrations of free and non-TeBG bound testosterone in women on oral contraceptivesContraception1974226
31Prolonged intrauterine contraception: A seven-year randomized study of the levonorgestrel 20 mcg/day (LNg 20) and the Copper T380 Ag IUDSContraception1991225
32Treatment of premenstrual dysphoric disorder with a new drospirenone-containing oral contraceptive formulationContraception2005225
33Termination of very early pregnancy by RU 486 — An antiprogestational compoundContraception1984219
34The analysis of vaginal bleeding patterns induced by fertility regulating methodsContraception1986219
35Celebration meets caution: LARC's boons, potential busts, and the benefits of a reproductive justice approachContraception2014219
36Women's preferences for contraceptive counseling and decision makingContraception2013217
37Bleeding patterns and clinical performance of the levonorgestrel-releasing intrauterine system (Mirena) up to two yearsContraception2002215
38Oral contraceptives, cigarette smoking and other factors in relation to arthritisContraception1987210
39Effect of four different oral contraceptives on various sex hormones and serum-binding globulinsContraception2003209
40Clinical performance of a levonorgestrel-releasing intrauterine system and oral contraceptives in young nulliparous women: a comparative studyContraception2004204
41Safety and efficacy of Implanon™, a single-rod implantable contraceptive containing etonogestrelContraception2005204
42Timing of steps and reasons for delays in obtaining abortions in the United StatesContraception2006202
43Intrauterine device insertion during the postpartum period: a systematic reviewContraception2009196
44The increased risk of venous thromboembolism and the use of third generation progestagens: Role of bias in observational researchContraception1996194
45First-time use of newer oral contraceptives and the risk of venous thromboembolismContraception1997192
46“It just happens”: a qualitative study exploring low-income women’s perspectives on pregnancy intention and planningContraception2015190
47Unintended pregnancy in sub-Saharan Africa: magnitude of the problem and potential role of contraceptive implants to alleviate itContraception2008189
48Burden of unintended pregnancy in the United States: potential savings with increased use of long-acting reversible contraceptionContraception2013188
49Gossypol: a contraceptive for menContraception2002184
50Copper-T intrauterine device and levonorgestrel intrauterine system: biological bases of their mechanism of actionContraception2007184