title: [Agonist or antagonist? Structure-activity relationships of opioids].
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Brandt
mesh_terms: D000701:Analgesics, Opioid / Q000737:chemistry* / Q000494:pharmacology*; D000818:Animals; D006801:Humans; D008958:Models, Molecular; D009292:Narcotic Antagonists; D009294:Narcotics / Q000737:chemistry* / Q000494:pharmacology*; D011957:Receptors, Opioid / Q000819:agonists*; D013329:Structure-Activity Relationship
chemical_list: D000701:Analgesics, Opioid; D009292:Narcotic Antagonists; D009294:Narcotics; D011957:Receptors, Opioid