title: The concept of the quasi-abstinence effect and its use in the investigation of dependence mechanisms.
mesh_terms: D006916:5-Hydroxytryptophan / Q000494:pharmacology; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001921:Brain / Q000201:enzymology; D006728:Hormones / Q000378:metabolism; D006801:Humans; D009270:Naloxone / Q000494:pharmacology; D010726:Phosphodiesterase Inhibitors; D051381:Rats; D012701:Serotonin / Q000494:pharmacology; D013375:Substance Withdrawal Syndrome; D019966:Substance-Related Disorders / Q000378:metabolism; D013806:Theophylline / Q000494:pharmacology
chemical_list: D006728:Hormones; D010726:Phosphodiesterase Inhibitors; D012701:Serotonin; D009270:Naloxone; D013806:Theophylline; D006916:5-Hydroxytryptophan