About the Authors

Seung Yang

Affiliation Department of Pediatrics, Hallym University College of Medicine, Seoul, Korea

Jin Soon Hwang

Affiliation Department of Pediatrics, Ajou University School of Medicine, Ajou University Hospital, Suwon, Korea

Hong Kyu Park

Affiliation Department of Pediatrics, Hallym University College of Medicine, Seoul, Korea

Hae Sang Lee

Affiliation Department of Pediatrics, Ajou University School of Medicine, Ajou University Hospital, Suwon, Korea

Hae Soon Kim

Affiliation Department of Pediatrics, Ewha Woman's University School of Medicine, Seoul, Korea

Eun Young Kim

Affiliation Department of Pediatrics, College of Medicine Chosun University, Gwangju, Korea

Jung Sub Lim

limjs@kcch.re.kr

Affiliation Department of Pediatrics, Korea Cancer Center Hospital, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JSL SY. Performed the experiments: JSH HKP HSL. Analyzed the data: JSL SY HKP HSK EYK. Wrote the paper: JSL SY. Ensured the accuracy of the data and analysis: SY JSH HKP HSL HSK EYK JSL.