title: Peptic ulcer: a reappraisal of its aetiology.
mesh_terms: D000818:Animals; D003042:Cocaine / Q000494:pharmacology; D003864:Depression, Chemical; D004285:Dogs; D004386:Duodenum / Q000187:drug effects / Q000378:metabolism; D005750:Gastric Juice / Q000378:metabolism; D005752:Gastric Mucins / Q000378:metabolism; D005753:Gastric Mucosa / Q000378:metabolism; D006025:Glycosaminoglycans / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007421:Intestine, Small / Q000378:metabolism / Q000601:surgery; D008784:Methysergide / Q000494:pharmacology; D010437:Peptic Ulcer / Q000209:etiology*; D012110:Reserpine / Q000494:pharmacology; D012636:Secretory Rate / Q000187:drug effects; D012701:Serotonin / Q000378:metabolism / Q000494:pharmacology; D014020:Tissue Extracts / Q000494:pharmacology; D014628:Vagotomy
chemical_list: D005752:Gastric Mucins; D006025:Glycosaminoglycans; D014020:Tissue Extracts; D012701:Serotonin; D012110:Reserpine; D003042:Cocaine; D008784:Methysergide