1. Department of Pediatrics, Pusan National University Children’s Hospital, Yangsan, Republic of Korea;
2. Department of Pediatrics, Pusan National University School of Medicine, Yangsan, Republic of Korea;
3. Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea;
4. Department of Dermatology, Pusan National University School of Medicine, Yangsan, Republic of Korea