*Department of Surgery, The Catholic University of Korea
†Department of Surgery, Inha University
‡Department of Surgery, Gyeongsang National University
§Department of Surgery, Korea University
∥Department of Surgery, Inje University
¶Department of Surgery, Yonsei University
♯Department of Surgery, Chonnam National University
**Department of Surgery Hallym University
††Department of Surgery, Sungkyunkwan University
‡‡Department of Surgery, Ewha University
§§Department of Surgery, Cheongju St Mary's Hospital
∥∥Department of Surgery, Changwon Fatima Hospital
¶¶Department of Surgery, Konkuk University
♯♯Department of Surgery, Chungnam National University
***Department of Surgery, Ajou University
†††Department of Surgery, Seoul National University, South Korea
Reprints: Jeong Soo Kim, MD, PhD, Uijeongbu St Mary's Hospital, 65-1 Kumoh Dong Uijeongbu City, Kyunggido, South Korea 480-130 (e-mail: [email protected]).
Received for publication January 26, 2007; accepted January 14, 2008