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) Norihiko Ikeda and Hiroyuki Yamamoto and Akinobu Taketomi and Taizo Hibi and Minoru Ono and Naoki Niikura and Iwao Sugitani and Urara Isozumi and Hiroaki Miyata and Hiroaki Nagano and Michiaki Unno and Yuko Kitagawa and Masaki Mori,The impact of COVID-19 on surgical procedures in Japan: analysis of data from the National Clinical Database,Surgery Today,0941-1291,Springer Science and Business Media LLC,2021-11-16,52,1,22-35,https://cir.nii.ac.jp/crid/1360298345426580224,https://doi.org/10.1007/s00595-021-02406-2