title: Partial gastrectomy: the value of permanent vitamin-B-12 therapy.
mesh_terms: D002986:Clinical Trials as Topic; D005260:Female; D005743:Gastrectomy / Q000009:adverse effects*; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000601:surgery; D010919:Placebos; D011183:Postoperative Complications / Q000188:drug therapy*; D014805:Vitamin B 12 / Q000627:therapeutic use*; D014806:Vitamin B 12 Deficiency / Q000188:drug therapy*
chemical_list: D010919:Placebos; D014805:Vitamin B 12