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) PITZALIS MV,Short- and long-term reproducibility of time and frequency domain heart rate variability measurements in normal subjects,Cardiovasc Res,,,1996,32,,226-233,https://cir.nii.ac.jp/crid/1570291225912515456,