title: [Multiple opioid systems: theoretical aspects].
authors.forename: A
authors.initials: A
authors.lastname: Herz
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D004723:Endorphins / Q000502:physiology*; D051381:Rats; D011957:Receptors, Opioid / Q000502:physiology*; D013329:Structure-Activity Relationship
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid
vernacular_title: Multiple opioide Systeme: Theoretische Aspekte.