1. Department of Pediatrics, Severance Children’s Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, Korea.
2. Department of University Industry Foundation, Yonsei University, Seoul, Korea.
3. Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
4. Department of Pediatrics, International St. Mary’s Hospital, Catholic Kwandong University, Incheon, Korea.
5. Department of Pediatrics, Kangwon National University Hospital, Chuncheon, Korea.
6. Department of Pediatrics, Konyang University College of Medicine, Daejeon, Korea.
7. Department of Pediatrics, CHA Gangnam Medical Center, CHA University, Seoul, Korea.
8. Department of Pediatrics, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.