title: Vitamins, neural tube defects, and ethics committees.
mesh_terms: D028744:Ethics Committees, Research; D004992:Ethics, Medical; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D008722:Methods; D009436:Neural Tube Defects / Q000517:prevention & control*; D011247:Pregnancy; D037841:Pregnant People; D012107:Research Design; D014815:Vitamins / Q000008:administration & dosage*
chemical_list: D014815:Vitamins