A Method for Estimating Doctor's Fatigue Level in Operating a Surgical Robot Using Wearable Sensors. - Ayumi Ohnishi; Hayate Tohnan; Tsutomu Terada; Minoru Hattori; Hisaaki Yoshinaka; Yusuke Sumi; Hiroyuki Egi; Masahiko Tsukamoto (PerCom Workshops, 2021)