1. Department of Internal Medicine-Nephrology, Seoul National University College of Medicine, Seoul, Republic of Korea
2. Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
3. Department of Obstetrics and Gynecology, Bagaehospital, Pyeongtaek, Gyunggi-Do, Republic of Korea
4. Department of Surgery, Bagaehospital, Pyeongtaek, Gyunggi-Do, Republic of Korea
5. Department of Internal Medicine-Nephrology, Keimyung University School of Medicine, Daegu, Republic of Korea
6. Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
7. Department of Orthopedic Surgery, Bagaehospital, Pyeongtaek, Gyunggi-Do, Republic of Korea