title: Cholecystokinin octapeptide (CCK-8): a negative feedback control mechanism for opioid analgesia.
authors.affiliation: Neuroscience Research Center, Beijing Medical University, China.
authors.forename: J S
authors.initials: JS
authors.lastname: Han
mesh_terms: D000701:Analgesics, Opioid / Q000037:antagonists & inhibitors*; D000818:Animals; D004357:Drug Synergism; D015671:Electroacupuncture; D005246:Feedback; D012844:Sincalide / Q000037:antagonists & inhibitors / Q000502:physiology*
chemical_list: D000701:Analgesics, Opioid; D012844:Sincalide