title: Nonpharmacological bases of drug tolerance and dependence.
mesh_terms: D000818:Animals; D001244:Association; D003214:Conditioning, Classical; D003463:Cues; D004361:Drug Tolerance; D005108:Extinction, Psychological; D003932:Heroin / Q000008:administration & dosage; D006801:Humans; D009020:Morphine / Q000008:administration & dosage; D051381:Rats; D012008:Recurrence; D013375:Substance Withdrawal Syndrome / Q000523:psychology; D019966:Substance-Related Disorders / Q000523:psychology*
chemical_list: D003932:Heroin; D009020:Morphine