title: Naltrexone effects on morphine and food self-administration in morphine-dependent rhesus monkeys.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant / Q000187:drug effects*; D005502:Food; D006801:Humans; D008253:Macaca mulatta; D008297:Male; D009020:Morphine / Q000008:administration & dosage*; D009021:Morphine Dependence / Q000523:psychology*; D009270:Naloxone / Q000031:analogs & derivatives*; D009271:Naltrexone / Q000494:pharmacology*; D012646:Self Administration; D013375:Substance Withdrawal Syndrome / Q000139:chemically induced
chemical_list: D009270:Naloxone; D009271:Naltrexone; D009020:Morphine