title: Ten years of opioid peptides--retrospectives and perspectives.
mesh_terms: D000818:Animals; D004723:Endorphins / Q000032:analysis / Q000494:pharmacology / Q000502:physiology; D006801:Humans; D009619:Nociceptors / Q000502:physiology; D010146:Pain / Q000503:physiopathology; D011957:Receptors, Opioid / Q000502:physiology
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid