1. Department of Pediatrics, Pusan National University Children’s Hospital, Pusan National University School of Medicine, Yangsan, Republic of Korea;
2. Department of Pediatrics, College of Medicine, Yeungnam University, Daegu, Republic of Korea;
3. Department of Pediatrics, Daegu Fatima Hospital, Daegu, Republic of Korea;
4. Department of Pediatrics, Ulsan University Hospital, Ulsan, Republic of Korea;
5. Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, Republic of Korea;
6. Department of Pediatrics, Inje University College of Medicine, Busan Paik Hospital, Busan, Republic of Korea;
7. Department of Pediatrics, Gyeongsang National University School of Medicine, Jinju, Republic of Korea;
8. Department of Pediatrics, Keimyung University School of Medicine and Dongsan Medical Center, Daegu, Republic of Korea;
9. Department of Pediatrics, Kosin University College of Medicine, Busan, Republic of Korea;
10. Department of Pediatrics, Dong-A University College of Medicine, Busan, Republic of Korea;
11. Department of Pediatrics, Daegu Catholic University Medical Center, Daegu, Republic of Korea;
12. Department of Pediatrics, Inje University Haeundae Paik Hospital, Busan, Republic of Korea