1 Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
2 Center for Digital Health, Medical Science Research Institute, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, Republic of Korea.
3 Department of Pediatrics, Kyung Hee University College of Medicine, Seoul, Republic of Korea.