Smoking habits of patients with pernicious anaemia in whom gastric cancer has not been demonstrated.
D000126:Achlorhydria; D000328:Adult; D000368:Aged; D000752:Anemia, Pernicious / Q000150:complications; D005260:Female; D006801:Humans; D007437:Intrinsic Factor; D008297:Male; D008875:Middle Aged; D012907:Smoking; D013274:Stomach Neoplasms / Q000150:complications; D014806:Vitamin B 12 Deficiency
D007437:Intrinsic Factor