title: Quasi-morphine withdrawal syndrome: recent developments. Introduction.
mesh_terms: D000818:Animals; D006801:Humans; D009021:Morphine Dependence; D009270:Naloxone / Q000494:pharmacology; D010726:Phosphodiesterase Inhibitors / Q000037:antagonists & inhibitors / Q000494:pharmacology; D051381:Rats; D013375:Substance Withdrawal Syndrome / Q000209:etiology*
chemical_list: D010726:Phosphodiesterase Inhibitors; D009270:Naloxone