title: Prostaglandins, smoking, and duodenal ulcer relapse.
mesh_terms: D002927:Cimetidine / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D004381:Duodenal Ulcer / Q000209:etiology / Q000503:physiopathology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011453:Prostaglandins / Q000502:physiology; D011458:Prostaglandins E / Q000627:therapeutic use*; D011465:Prostaglandins, Synthetic / Q000627:therapeutic use*; D012008:Recurrence; D016630:Rioprostil; D012907:Smoking / Q000009:adverse effects*
chemical_list: D011453:Prostaglandins; D011458:Prostaglandins E; D011465:Prostaglandins, Synthetic; D016630:Rioprostil; D002927:Cimetidine