1. Department of Internal Medicine, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
2. Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
3. Department of Pediatrics, Korea University College of Medicine, Seoul, Republic of Korea
4. Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Republic of Korea
5. Biotechnology Division, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
6. Department of Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology, Daejeon, Republic of Korea