title: [H2 blocker-resistant peptic ulcers. Selection of surgical patients, changes in indications].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004351:Drug Resistance; D005260:Female; D006635:Histamine H2 Antagonists / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000188:drug therapy / Q000601:surgery*
chemical_list: D006635:Histamine H2 Antagonists
vernacular_title: H2-Blocker-resistentes peptisches Ulkus. Selektion chirurgischer Patienten, Wandel der Indikationen.