title: Letter: Clomiphene and anencephalic births.
mesh_terms: D000757:Anencephaly / Q000139:chemically induced* / Q000453:epidemiology / Q000235:genetics; D002996:Clomiphene / Q000009:adverse effects* / Q000494:pharmacology; D010064:Embryo Implantation / Q000187:drug effects; D005260:Female; D005298:Fertility; D006801:Humans; D007086:Illegitimacy; D010060:Ovulation / Q000187:drug effects; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins
chemical_list: D002996:Clomiphene