著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI)
Gurusamy,Fewer-than-four ports versus four ports for laparoscopic cholecystectomy (Review),Cochrane Database Syst Rev,,,2014,2,,,https://cir.nii.ac.jp/crid/1371412892191751296,