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) Yukihiko Nakata and Mai Akazawa and Yasushi Tsujimoto and Hiraku Tsujimoto and Yuki Kataoka,Ultrasonography for confirmation of gastric tube placement,Cochrane Database of Systematic Reviews,1465-1858,Wiley,2016-02-09,2017,,,https://cir.nii.ac.jp/crid/1874242817997289344,https://doi.org/10.1002/14651858.cd012083.pub2