Gastrointestinal hormones.
D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002766:Cholecystokinin / Q000502:physiology; D004285:Dogs; D005755:Gastrins / Q000276:immunology / Q000378:metabolism / Q000502:physiology; D005768:Gastrointestinal Hormones / Q000502:physiology*; D005934:Glucagon / Q000502:physiology; D006801:Humans; D009490:Neurosecretory Systems / Q000166:cytology; D012633:Secretin / Q000502:physiology
D005755:Gastrins; D005768:Gastrointestinal Hormones; D012633:Secretin; D005934:Glucagon; D002766:Cholecystokinin