Hand hygiene monitoring by positioning technology utilizing IoT devices. - Keiko Yamashita; Shintaro Oyama; Satoshi Yamashita; Chiaki Funada; Kikue Sato; Taiki Furukawa; Aki Sugano; Daisuke Kobayashi; Hiroshi Tomozawa; Yuji Sakamoto; Yoshinori Ideno; Kensaku Mori; et al. (AMIA, 2021)