title: Relapse of duodenal ulcer.
mesh_terms: D001729:Bismuth / Q000627:therapeutic use; D004381:Duodenal Ulcer / Q000188:drug therapy*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use; D006801:Humans; D009942:Organometallic Compounds; D012008:Recurrence
chemical_list: D006635:Histamine H2 Antagonists; D009942:Organometallic Compounds; C002791:bismuth tripotassium dicitrate; D001729:Bismuth