Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Goto Yukio and Nakagawa Takashi and Shigemi Kenji,Difference between a fantasy at the ‘End-of-life’ and an emotional reaction of REM-sleep using the 1/f-like spectral analysis of the heart rate variability and Balance index,CIRCULATION CONTROL,0389-1844,Japan Society of Circulation Control in Medicine,2018,39,3,180-189,https://cir.nii.ac.jp/crid/1390001288119631104,https://doi.org/10.11312/ccm.39.180