Hahn KA, Hatch EE, Rothman KJ, Mikkelsen EM, Brogly SB, Sorensen HT, Riis AH, Wise LA. History of oral contraceptive use and risk of spontaneous abortion. Ann Epidemiol. 2015 Dec;25(12):936-941 e. doi: 10.1016/j.annepidem.2015.09.001
Rodes-Cabau J, Horlick E, Ibrahim R, Cheema AN, Labinaz M, Nadeem N, Osten M, Cote M, Marsal JR, Rivest D, Marrero A, Houde C. Effect of clopidogrel and aspirin vs aspirin alone on migraine headaches after transcatheter atrial septal defect closure: the CANOA randomized clinical trial. JAMA. 2015 Nov 24;314(20):2147-54. doi: 10.1001/jama.2015.13919
Cueto HT, Riis AH, Hatch EE, Wise LA, Rothman KJ, Sorensen HT, Mikkelsen EM. Folic acid supplement use and menstrual cycle characteristics: a cross-sectional study of Danish pregnancy planners. Ann Epidemiol. 2015 Oct;25(10):723-9.e1. doi: 10.1016/j.annepidem.2015.05.008
Jick H, Hannan MT, Stergachis A, Heidrich F, Perera DR, Rothman KJ. Vaginal spermicides and gonorrhea. JAMA. 1982 Jan 1;248(13):1619-21.