title: [Multi-center double-blind clinical trial of ranitidine in the treatment of stomach and duodenal ulcers].
mesh_terms: D000046:Academic Medical Centers; D000328:Adult; D055598:Chemical Phenomena; D002621:Chemistry; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004381:Duodenal Ulcer / Q000188:drug therapy*; D005663:Furans / Q000627:therapeutic use*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use*; D006801:Humans; D007373:Interinstitutional Relations; D008875:Middle Aged; D011044:Poland; D011899:Ranitidine; D013276:Stomach Ulcer / Q000188:drug therapy*; D014945:Wound Healing / Q000187:drug effects
chemical_list: D005663:Furans; D006635:Histamine H2 Antagonists; D011899:Ranitidine
vernacular_title: Wieloośrodkowa, podwójnie ślepa próba leczenia wrzodów zoładka i dwunastnicy ranitydyna.