1. Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
2. National Cancer Control Institute, National Cancer Center, Goyang, Korea
3. Department of Preventive Medicine, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Korea
4. Department of Urology, Jeju National University, Jeju, Korea
5. Department of Internal Medicine, College of Medicine, Dong-A University, Busan, Korea
6. Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Korea