Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TOGAWA Tatsuo,Father of Pulse Oximeter,Transactions of Japanese Society for Medical and Biological Engineering,1347443X,Japanese Society for Medical and Biological Engineering,2011,49,2,310-312,https://cir.nii.ac.jp/crid/1390282680242868352,https://doi.org/10.11239/jsmbe.49.310