H2-receptor antagonists in duodenal ulceration.
D004381:Duodenal Ulcer / Q000150:complications / Q000188:drug therapy*; D005500:Follow-Up Studies; D006635:Histamine H2 Antagonists / Q000627:therapeutic use*; D006801:Humans; D012008:Recurrence
D006635:Histamine H2 Antagonists