title: What can we learn from twin studies of pain and analgesia?
authors.affiliation: Norwegian Institute of Public Health, Division of Mental Health, PB 4404 Nydalen, NO-0403 Oslo, Norway Fax: +47 21 07 82 60.
authors.forename: Christopher Sivert
authors.initials: CS
authors.lastname: Nielsen
mesh_terms: D015760:Alfentanil / Q000627:therapeutic use*; D000701:Analgesics, Opioid / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D010146:Pain / Q000188:drug therapy*; D017288:Pain Threshold / Q000502:physiology*; D014427:Twins / Q000235:genetics*
chemical_list: D000701:Analgesics, Opioid; D015760:Alfentanil