Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) DEKKER JM,Low heart rate variability in a 2-minute rhythm strip predicts risk of coronary heart disease and mortality from several causes : the ARIC Study. Atherosclerosis Risk In Communities,Circulation,,,2000,102,,1239-1244,https://cir.nii.ac.jp/crid/1571980075153007872,