Audit of the use of vitamin B12 in general practice.
D000368:Aged; D000752:Anemia, Pernicious / Q000188:drug therapy; D004363:Drug Utilization; D004739:England; D005194:Family Practice; D005260:Female; D006801:Humans; D008297:Male; D008485:Medical Audit; D014805:Vitamin B 12 / Q000008:administration & dosage
D014805:Vitamin B 12