[Etiology of pica].
D002648:Child; D002675:Child, Preschool; D005247:Feeding Behavior; D001068:Feeding and Eating Disorders / Q000209:etiology*; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D007223:Infant; D007501:Iron / Q000097:blood; D008297:Male; D010842:Pica / Q000209:etiology
D006454:Hemoglobins; D007501:Iron