beta-Endorphin and related peptides.
D000818:Animals; D002417:Cattle; D004723:Endorphins / Q000096:biosynthesis / Q000378:metabolism* / Q000502:physiology; D006801:Humans; D051381:Rats; D014018:Tissue Distribution; D001615:beta-Endorphin
D004723:Endorphins; D001615:beta-Endorphin