[Recent progress in enkephalin research (author's transl)].
D001923:Brain Chemistry; D004723:Endorphins / Q000032:analysis / Q000502:physiology*; D004745:Enkephalins / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D009293:Opioid-Related Disorders / Q000188:drug therapy; D011957:Receptors, Opioid / Q000032:analysis
D004723:Endorphins; D004745:Enkephalins; D011957:Receptors, Opioid