Pepsin.
D000109:Acetylcholine / Q000502:physiology; D000302:Adrenal Cortex / Q000502:physiology; D000818:Animals; D000863:Antacids / Q000494:pharmacology; D000925:Anticoagulants / Q000494:pharmacology; D002351:Carrageenan / Q000494:pharmacology; D002766:Cholecystokinin / Q000494:pharmacology; D004381:Duodenal Ulcer / Q000175:diagnosis; D004789:Enzyme Activation; D005745:Gastric Acidity Determination; D005753:Gastric Mucosa / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010434:Pepsin A / Q000032:analysis / Q000037:antagonists & inhibitors / Q000378:metabolism / Q000502:physiology*; D010435:Pepsinogens / Q000097:blood / Q000502:physiology / Q000652:urine; D010437:Peptic Ulcer / Q000503:physiopathology / Q000601:surgery; D012633:Secretin / Q000502:physiology; D014628:Vagotomy; D014630:Vagus Nerve / Q000502:physiology; D014970:Xanthines / Q000494:pharmacology
D000863:Antacids; D000925:Anticoagulants; D010435:Pepsinogens; D014970:Xanthines; D012633:Secretin; D002351:Carrageenan; D002766:Cholecystokinin; D010434:Pepsin A; D000109:Acetylcholine