title: Letter: Macrocytosis of chronic alcoholism.
mesh_terms: D000437:Alcoholism / Q000097:blood*; D001853:Bone Marrow / Q000187:drug effects; D002908:Chronic Disease; D004913:Erythrocytes, Abnormal; D006801:Humans; D014805:Vitamin B 12 / Q000097:blood / Q000494:pharmacology
chemical_list: D014805:Vitamin B 12