title: The efficacy and safety of long-term maintenance treatment of duodenal ulcers with ranitidine.
authors: J G
authors: JG
authors: Penston
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects; D002648:Child; D004381:Duodenal Ulcer / Q000139:chemically induced / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011899:Ranitidine / Q000009:adverse effects / Q000627:therapeutic use*; D012008:Recurrence; D012307:Risk Factors; D013997:Time Factors
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D011899:Ranitidine