title: Nutritional factors in choline deficiency.
mesh_terms: D000818:Animals; D002796:Choline Deficiency / Q000188:drug therapy*; D004032:Diet; D008715:Methionine / Q000494:pharmacology*; D051381:Rats; D014805:Vitamin B 12 / Q000494:pharmacology*
chemical_list: D008715:Methionine; D014805:Vitamin B 12