1. Department of Pediatrics, Pusan National University Hospital, Pusan National University School of Medicine, Busan, the Republic of Korea.
2. Department of Pharmacy, College of Pharmacy, Kangwon National University, Chuncheon, the Republic of Korea.
3. Division of Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, the Republic of Korea.
4. Department of Pediatrics, National Medical Center, Seoul, the Republic of Korea.
5. Department of Pediatrics, Jeju National University School of Medicine, Jeju, the Republic of Korea.
6. Department of Pediatrics, Seoul National University College of Medicine, Seoul, the Republic of Korea.
7. Department of Pediatrics, Korea University Anam Hospital, Seoul, the Republic of Korea.