Nishizaka, Chika, Sayaka Fujiwara, Satoshi Endo, Hiroshi Mano, Kengo Ohnishi, and Nobuhiko Haga. “THE COMPARISON OF FUNCTION AND USEFULNESS OF VOLUNTARY CLOSING AND VOLUNTARY OPENING BODY-POWERED PROSTHESES”. MEC20 Symposium (July 23, 2020). Accessed November 28, 2021. https://conferences.lib.unb.ca/index.php/mec/article/view/64.