狠狠撸shows by User: only1back / http://www.slideshare.net/images/logo.gif 狠狠撸shows by User: only1back / 狠狠撸Share feed for 狠狠撸shows by User: only1back https://public.slidesharecdn.com/v2/images/profile-picture.png Kwon Min-Yong, M.D. Kei-Myung University Dong-San Medical Center Department of Neurosurgery Mobile 010)4288-6854, 010)4088-6854 E-Mail only1back@me.com Homepage http://www.kwonminyong.com