Johannes C, Crawford S, McKinlay S. The effect of alcohol and estrogen replacement therapy (ERT) on estrogen levels in postmenopausal women. Presented at the 30th Annual Meeting of the Society for Epidemiologic Research; 1997. Edmonton, Canada. [abstract] Am J Epidemiol. 1997; 145(Suppl):S1.
Johannes C, McKinlay J, Crawford S. Interviewer effects in a cohort study. Presented at the 1995 Society for Epidemiologic Research 28th Annual Meeting; June 1995. Snowbird, UT. [abstract] Am J Epidemiol. 1995 Jun; 141(11 Suppl):S21.