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) BIGGER JT Jr,"RR variability in healthy, middle-aged persons compared with patients with chronic coronary heart disease or recent acute myocardial infarction",Circulation,,,1995,91,,1936-1943,https://cir.nii.ac.jp/crid/1572543024204716928,