JAMA · 1996 · 348 citations · 14 references
Because as many as 10% of women may be obese periconceptionally, the observed twofold increased risk is relevant to the population burden of NTDs.
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A DATA-BASED APPROACH TO DIET QUESTIONNAIRE DESIGN AND TESTING
Gladys Block, Anne M. Hartman, Connie Dresser et al. · American Journal of Epidemiology · 1986 · 2.2K citations
Obesity, Nutrition, Diet Record +13
PERICONCEPTIONAL VITAMIN USE, DIETARY FOLATE, AND THE OCCURRENCE OF NEURAL TUBE DEFECTS
Gary M. Shaw, Donna Schaffer, Ellen M. Velie et al. · Epidemiology · 1995 · 398 citations