Authors: Kwang Jae Lee; Gwang Ha Kim; Do Youn Park; Na Ri Shin; Bong Eun Lee; Dong Yup Ryu; Dong Uk Kim; Geun Am Song Journal: Surg Endosc Date: 2013-08-31 Impact factor: 4.584
Authors: Dong Hwahn Kahng; Gwang Ha Kim; Do Youn Park; Moo Song Jeon; Ji Won Yi; Yu Yi Choi; Geun Am Song Journal: Surg Endosc Date: 2013-03-12 Impact factor: 4.584