Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ohshio Yoshitaka and Ikefuji Daisuke and Suhara Yuko and Nakayama Masato and Nishiura Takanobu,A Design of Comfortable Dental Treatment Sound Based on Chord-forming in Time and Frequency Domains,"IEEJ Transactions on Electronics, Information and Systems",03854221,The Institute of Electrical Engineers of Japan,2015,135,12,1565-1573,https://cir.nii.ac.jp/crid/1390001204609142016,https://doi.org/10.1541/ieejeiss.135.1565