title: Endocrine dysfunction and anencephaly and spina bifida: an epidemiologic hypothesis.
mesh_terms: D000349:Africa; D000757:Anencephaly / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D001208:Asia; D001722:Birth Order; D005060:Europe; D005260:Female; D005828:Genetics, Population; D006065:Gonadotropins, Pituitary / Q000502:physiology*; D006801:Humans; D008297:Male; D008423:Maternal Age; D010298:Parity; D010900:Pituitary Diseases / Q000150:complications; D011247:Pregnancy; D011956:Receptors, Cell Surface; D012067:Religion; D012621:Seasons; D012737:Sex Factors; D012959:Socioeconomic Factors; D016135:Spinal Dysraphism / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D014427:Twins; D014481:United States
chemical_list: D006065:Gonadotropins, Pituitary; D011956:Receptors, Cell Surface