[Endogenous opiates--a joker?].
D000818:Animals; D004435:Eating; D004723:Endorphins / Q000502:physiology*; D006801:Humans; D011957:Receptors, Opioid / Q000502:physiology
D004723:Endorphins; D011957:Receptors, Opioid
Endogene Opiate--ein Joker?