title: Effects of opiates, opioid antagonists and cocaine on the endogenous opioid system: clinical and laboratory studies.
authors.affiliation: Rockefeller University, New York, N.Y.
authors.forename: M J
authors.initials: MJ
authors.lastname: Kreek
mesh_terms: D000818:Animals; D003042:Cocaine / Q000494:pharmacology*; D004723:Endorphins / Q000502:physiology*; D006556:Heroin Dependence / Q000378:metabolism; D006801:Humans; D009292:Narcotic Antagonists / Q000494:pharmacology*; D009294:Narcotics / Q000494:pharmacology*
chemical_list: D004723:Endorphins; D009292:Narcotic Antagonists; D009294:Narcotics; D003042:Cocaine