title: Letter: Vitamin A and rat embryos.
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000209:etiology*; D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects; D046508:Culture Techniques; D004622:Embryo, Mammalian / Q000187:drug effects; D005260:Female; D008099:Liver / Q000378:metabolism; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D051381:Rats; D014801:Vitamin A / Q000008:administration & dosage / Q000009:adverse effects* / Q000097:blood / Q000378:metabolism
chemical_list: D014801:Vitamin A