Mikkelsen EM, Wise LA, Riis A, Hatch EE, Sorensen HT, Rothman KJ. An internet-based prospective study of pregravid oral contraceptive use and time to pregnancy. Adv Pharmacoepidemiol Drug Saf. 2009 Aug 16;18(Suppl 1):S9.
Enger C, Rothman KJ, Kylstra JW. Mortality rates during two years of treatment with intermittent inhaled tobramycin (TOBI) in cystic fibrosis. Pediatr Pulmonol. 1999 Sep 22;28(Suppl 19):339-40.
Rothman KJ. A sobering start for the cluster busters' conference. Am J Epidemiol. 1990 Jul;132(Suppl 1):6-13.