Affiliation: | Dong Hyun Sinn,Geum-Youn Gwak,Moon Seok Choi,Kwang Cheol Koh,Seung Woon Paik,Byung Chul Yoo,Joon Hyeok Lee,Department of Medicine,Samsung Medical Center,Sungkyunkwan University School of Medicine,135-710 Seoul,South Korea Hyang Ie Lee,Department of Internal Medicine,Eulji University Hospital,302-799 Daejeon,South Korea |