title: Atrophic gastritis in the aged.
mesh_terms: D000368:Aged; D000906:Antibodies; D001284:Atrophy; D001706:Biopsy; D005455:Fluorescent Antibody Technique; D005750:Gastric Juice / Q000032:analysis; D005753:Gastric Mucosa / Q000378:metabolism / Q000473:pathology; D005756:Gastritis / Q000150:complications / Q000453:epidemiology* / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D006632:Histamine; D006801:Humans; D007437:Intrinsic Factor / Q000032:analysis; D007501:Iron / Q000097:blood; D008297:Male; D008875:Middle Aged; D012546:Schilling Test; D014805:Vitamin B 12 / Q000097:blood; D014806:Vitamin B 12 Deficiency / Q000209:etiology
chemical_list: D000906:Antibodies; D006632:Histamine; D007437:Intrinsic Factor; D007501:Iron; D014805:Vitamin B 12