De Simone, M [Endogenous opiates and the gastrointestinal tract. Physioanatomic notes (review)]. [electronic resource] - Minerva dietologica e gastroenterologica - 613-7 p. digital Publication Type: Journal Article ISSN: 0391-1993 Subjects--Topical Terms: Digestive System--drug effectsDigestive System Physiological PhenomenaEndorphins--pharmacologyGastric Acid--metabolismHumansPeristalsis--drug effectsStress, Psychological