Foot-Controlled Robot-Enabled EnDOscope Manipulator (FREEDOM) for Sinus Surgery: Design, Control, and Evaluation. - Fangxun Zhong; Peng Li 019; Jiadong Shi; Zerui Wang; Jiahao Wu 002; Jason Ying-Kuen Chan; Natalie Leung; Iris Leung; Michael C. F. Tong; Yun-Hui Liu 001 (IEEE Trans. Biomed. Eng., 2020)