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JAMA|March 10, 1993
Periconceptional folic acid exposure and risk of occurrent neural tube defectsM M Werler, S Shapiro, A A Mitchell
The New England Journal of Medicine|December 14, 1989
The relation of aspirin use during the first trimester of pregnancy to congenital cardiac defectsM M Werler, A A Mitchell, S Shapiro
Teratology|April 1, 1992
First trimester maternal medication use in relation to gastroschisisM M Werler, A A Mitchell, S Shapiro
Lancet (London, England)|August 13, 1994
Ovulation induction and risk of neural tube defectsM M Werler, C Louik, S Shapiro, et al.
JAMA|April 10, 1996
Prepregnant weight in relation to risk of neural tube defectsM M Werler, C Louik, S Shapiro, et al.
American Journal of Epidemiology|October 8, 1999
Multivitamin supplementation and risk of birth defectsM M Werler, C Hayes, C Louik, et al.
The New England Journal of Medicine|August 20, 1987
Maternal exposure to spermicides in relation to certain birth defectsC Louik, A A Mitchell, M M Werler, et al.
American Journal of Public Health|November 30, 1999
Achieving a public health recommendation for preventing neural tube defects with folic acidM M Werler, C Louik, A A Mitchell
American Journal of Epidemiology|November 1, 1990
Maternal cigarette smoking during pregnancy in relation to oral cleftsM M Werler, E J Lammer, L Rosenberg, et al.
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