title: Drug-induced malabsorption of vitamin B 12 . V. Intestinal pH and absorption of vitamin B 12  during treatment with para-aminosalicylic acid.
mesh_terms: D000636:Aminosalicylic Acids / Q000009:adverse effects* / Q000627:therapeutic use; D003036:Cobalt Isotopes; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007082:Ileum / Q000378:metabolism*; D007408:Intestinal Absorption / Q000187:drug effects*; D007437:Intrinsic Factor / Q000502:physiology; D012546:Schilling Test; D013686:Telemetry; D014397:Tuberculosis, Pulmonary / Q000188:drug therapy; D014805:Vitamin B 12 / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000139:chemically induced*
chemical_list: D000636:Aminosalicylic Acids; D003036:Cobalt Isotopes; D007437:Intrinsic Factor; D014805:Vitamin B 12