著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) AHMEDZAI S,"Transdermal fentanyl versus sustained-release oral morphine in cancer pain : preference, efficacy, and quality of life. The TTS Fentanyl Comparative Trial Group",J Pain Symptom Manage,,,1997,16,,254-261,https://cir.nii.ac.jp/crid/1573668924068328320,