Grigor'ev, P Ia [The comparative efficacy of ranitidine and famotidine in treating exacerbations of duodenal peptic ulcer]. [electronic resource] - Klinicheskaia meditsina - 48-50 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0023-2149 Subjects--Topical Terms: AdultChronic DiseaseDuodenal Ulcer--diagnosisFamotidine--adverse effectsFemaleHumansMaleRanitidine--adverse effects