1. Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
2. Department of Pathology, Kyungpook National University Hospital, Daegu, Korea
3. Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, Kyungpook National University School of Medicine, Daegu, Korea
4. BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu, Korea
5. Biostatistics Center, Kyungpook National University School of Medicine, Daegu, Korea