1Lee Gil Ya Cancer and Diabetes Institute, Gachon University Graduate School of Medicine, Incheon 406-840,
Korea
1Department of Molecular Pathology, Tokyo Medical University, Tokyo160-8402,
Japan
2Department of Microbiology, CHA University, Seoul 135-913,
Korea
3Department of Internal Medicine, Bundang CHA Hospital, Seongnam 463-712,
Korea
4Department of Internal Medicine, Wonkwang University School of Medicine and Hospital, Iksan 570-749,
Korea
5Department of Pathology, Boramae Medical Center, Seoul National University College of Medicine, Seoul 156-707,
Korea
6Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-744,
Korea
7Department of Radiology, Seoul National University College of Medicine, Seoul 110-744,
Korea
*Correspondence: bcoh@gachon.ac.kr
The online version of the original article can be found under DOI/10.1007/s10059-013-0194-7.