1. Department of Pediatrics, Kosin University College of Medicine, Kosin University Gospel Hospital, Busan, Korea.
2. Department of Pediatrics, School of Medicine, Kyungpook National University, Kyungpook National University Children’s Hospital, Daegu, Korea.
3. Department of Pediatrics, Pusan National University Children’s Hospital, Yangsan, Korea.
4. Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea.
5. Department of Pediatrics, Gyeongsang National University Changwon Hospital, Changwon, Korea.
6. Department of Pediatrics, Dankook University Hospital, Cheonan, Korea.
7. Department of Pediatrics, Hallym University Sacred Heart Hospital, Anyang, Korea.
8. Department of Pediatrics, Jeju National University Hospital, Jeju, Korea.
9. Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
10. Department of Pediatrics, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea.
11. Department of Pediatrics, Yonsei University Wonju College of Medicine, Wonju, Korea.
12. Department of Pediatrics, Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
13. Department of Pediatrics, Chung-Ang University Hospital, College of Medicine, Chung-Ang University, Seoul, Korea.
14. Department of Pediatrics, Daegu Catholic University School of Medicine, Daegu, Korea.
15. Department of Pediatrics, Inje University College of Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea.
16. Department of Pediatrics, Kangwon National University School of Medicine, Chuncheon, Korea.
17. Department of Pediatrics, Jeonbuk National University Medical School and Hospital, Jeonju, Korea.
18. Research Institute of Clinical Medicine of Jeonbuk National University - Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea.