title: Respiratory function in heroin and methadone addicts.
mesh_terms: D005260:Female; D006556:Heroin Dependence / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008691:Methadone; D012119:Respiration; D019966:Substance-Related Disorders / Q000503:physiopathology*
chemical_list: D008691:Methadone