Crowe HM, Wesselink AK, Wise LA, Jick SS, Rothman KJ, Mikkelsen EM, Sorensen HT, Hatch EE. Pre-pregnancy migraine diagnosis, medication use, and spontaneous abortion: a prospective cohort study. J. Headache Pain. 2022 Dec 20;23(1):162. doi: 10.1186/s10194-022-01533-6
Cann CI, Fried MP, Rothman KJ. Epidemiology of squamous-cell cancer of the head and neck. Otolaryngol Clin N Am. 1985 Aug 1;18(3):367-88.