title: Vitamin B12 absorption and gastric antibodies in rheumatoid arthritis.
mesh_terms: D000367:Age Factors; D000368:Aged; D000906:Antibodies / Q000032:analysis*; D001172:Arthritis, Rheumatoid / Q000276:immunology / Q000378:metabolism*; D001327:Autoimmune Diseases; D003168:Complement Fixation Tests; D005260:Female; D005455:Fluorescent Antibody Technique; D005753:Gastric Mucosa / Q000378:metabolism; D005756:Gastritis / Q000150:complications; D006400:Hematocrit; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D007408:Intestinal Absorption; D007437:Intrinsic Factor; D008297:Male; D008875:Middle Aged; D012546:Schilling Test; D013270:Stomach / Q000276:immunology*; D014805:Vitamin B 12 / Q000378:metabolism*
chemical_list: D000906:Antibodies; D006454:Hemoglobins; D007437:Intrinsic Factor; D014805:Vitamin B 12