title: [Various problems on refractory peptic ulcers; ulcers resistant to therapy with H2-receptor antagonists--therapeutic countermeasures].
mesh_terms: D000109:Acetylcholine / Q000008:administration & dosage*; D000328:Adult; D004351:Drug Resistance; D004359:Drug Therapy, Combination; D005260:Female; D005744:Gastric Acid / Q000378:metabolism; D006635:Histamine H2 Antagonists / Q000008:administration & dosage / Q000494:pharmacology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010434:Pepsin A / Q000378:metabolism; D010437:Peptic Ulcer / Q000188:drug therapy* / Q000503:physiopathology; D012008:Recurrence
chemical_list: D006635:Histamine H2 Antagonists; D010434:Pepsin A; D000109:Acetylcholine