title: Differential effects of extinction on conditioned hyperthermia and analgesic tolerance to morphine.
mesh_terms: D000700:Analgesics; D000818:Animals; D003213:Conditioning, Psychological / Q000502:physiology*; D004361:Drug Tolerance; D004777:Environment; D005108:Extinction, Psychological / Q000502:physiology*; D005334:Fever / Q000139:chemically induced* / Q000523:psychology; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D010146:Pain / Q000523:psychology; D051381:Rats
chemical_list: D000700:Analgesics; D009020:Morphine