title: Trace elements and their interactions as causes of congenital defects.
mesh_terms: D000818:Animals; D000013:Congenital Abnormalities / Q000209:etiology*; D003300:Copper / Q000172:deficiency; D004032:Diet; D005260:Female; D006801:Humans; D008345:Manganese / Q000172:deficiency; D011247:Pregnancy; D011248:Pregnancy Complications; D014131:Trace Elements / Q000172:deficiency*; D015032:Zinc / Q000172:deficiency
chemical_list: D014131:Trace Elements; D008345:Manganese; D003300:Copper; D015032:Zinc