Response of a psychiatric patient to vitamin B12 therapy.
D000328:Adult; D005743:Gastrectomy; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000188:drug therapy; D011618:Psychotic Disorders / Q000188:drug therapy* / Q000209:etiology; D014805:Vitamin B 12 / Q000627:therapeutic use*; D014806:Vitamin B 12 Deficiency / Q000150:complications
D014805:Vitamin B 12