About the Authors

Yoon Hong Chun

Affiliation Department of Pediatrics, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Kyungdo Han

Affiliation Department of Biostatistics, The Catholic University of Korea, Seoul, Republic of Korea

Shin Hae Park

Affiliation Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Kyung-Min Park

Affiliation School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Hyeon Woo Yim

Affiliation Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Won-Chul Lee

Affiliation Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Yong Gyu Park

Contributed equally to this work with: Yong Gyu Park, Yong-Moon Park

Affiliation Department of Biostatistics, The Catholic University of Korea, Seoul, Republic of Korea

Yong-Moon Park

Contributed equally to this work with: Yong Gyu Park, Yong-Moon Park

markYMpark@gmail.com

Affiliations Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea, Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YHC SHP WCL YMP. Analyzed the data: KH KMP HWY YGP. Wrote the paper: YHC.