title: Cimetidine, gastric pH, and nitrosation.
mesh_terms: D002927:Cimetidine / Q000494:pharmacology* / Q000627:therapeutic use; D006146:Guanidines / Q000494:pharmacology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D009573:Nitrites / Q000378:metabolism*; D012107:Research Design; D013276:Stomach Ulcer / Q000188:drug therapy
chemical_list: D006146:Guanidines; D009573:Nitrites; D002927:Cimetidine