[Enkephalin].
D000818:Animals; D002415:Cats; D004745:Enkephalins / Q000032:analysis* / Q000502:physiology; D005753:Gastric Mucosa / Q000032:analysis*; D005769:Gastrointestinal Motility / Q000187:drug effects; D006168:Guinea Pigs; D006801:Humans; D007413:Intestinal Mucosa / Q000032:analysis*; D051381:Rats
D004745:Enkephalins