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) Toyoshima Katsuaki and Masutani Satoshi and Senzaki Hideaki and Kawataki Motoyoshi and Itani Yasushi,Left Atrial Volume Is Superior to the Ratio of the Left Atrium to Aorta Diameter for Assessment of the Severity of Patent Ductus Arteriosus in Extremely Low Birth Weight Infants,Circulation Journal,13469843,一般社団法人 日本循環器学会,2014,78,7,1701-1709,https://cir.nii.ac.jp/crid/1390282680083129216,https://doi.org/10.1253/circj.cj-13-1231