title: Pain perception in drug-free and in methadone-maintained human ex-addicts.
mesh_terms: D000328:Adult; D001794:Blood Pressure; D003080:Cold Temperature; D005260:Female; D006801:Humans; D007258:Informed Consent; D008297:Male; D008691:Methadone / Q000494:pharmacology*; D010146:Pain / Q000503:physiopathology*; D013375:Substance Withdrawal Syndrome / Q000503:physiopathology; D019966:Substance-Related Disorders / Q000503:physiopathology*
chemical_list: D008691:Methadone