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) David H. Spodick,Survey of selected cardiologists for an operational definition of normal sinus heart rate,The American Journal of Cardiology,0002-9149,Elsevier BV,1993-08,72,5,487-488,https://cir.nii.ac.jp/crid/1363107371315763072,https://doi.org/10.1016/0002-9149(93)91153-9