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)
Klaus A. Lehmann and Ulrich Kratzenberg and Barbara Schroeder-Bark and Gabriele Horrichs-Haermeyer,Postoperative Patient-Controlled Analgesia with Tramadol: Analgesic Efficacy and Minimum Effective Concentrations,The Clinical Journal of Pain,0749-8047,Ovid Technologies (Wolters Kluwer Health),1990-09,6,3,212-220,https://cir.nii.ac.jp/crid/1362825893957548032,https://doi.org/10.1097/00002508-199009000-00008