title: Tolerance to electroacupuncture and its cross tolerance to morphine.
mesh_terms: D015670:Acupuncture Therapy; D000818:Animals; D004361:Drug Tolerance; D004558:Electric Stimulation; D005260:Female; D006801:Humans; D009020:Morphine / Q000494:pharmacology*; D009270:Naloxone / Q000494:pharmacology; D051381:Rats; D011930:Reaction Time / Q000187:drug effects; D013375:Substance Withdrawal Syndrome / Q000139:chemically induced; D013997:Time Factors
chemical_list: D009270:Naloxone; D009020:Morphine