A study of surgeons' postural muscle activity during open, laparoscopic, and endovascular surgery. - Szeto GP; Ho P; Ting AC; Poon JT; Tsang RC; Cheng SW; Szeto, G P Y; Ho, P; Ting, A C W; Poon, J T C; Tsang, R C C; Cheng, S W K (Surgical Endoscopy & Other Interventional Techniques, 2010)