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) ,Measuring hospital-wide activity volume for patient safety and infection control : a multi-centre study in Japan.,BMC Health Serv Res 7(1),,,2007,,,140,https://cir.nii.ac.jp/crid/1010282256847883529,