About the Authors

Jun Yong Park

Affiliation Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea

Jeong Heo

Affiliation Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea

Tae Jin Lee

Affiliation Seoul National University School of Public Health & Institute, Seoul, Korea

Hyung Joon Yim

Affiliation Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea

Jong Eun Yeon

Affiliation Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea

Young-Suk Lim

Affiliation Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea

Min Jeong Seo

Affiliation Monitor Group Korea, Seoul, Korea

Sang Hoon Ahn

Contributed equally to this work with: Sang Hoon Ahn, Myung Seok Lee

Ahnsh@yuhs.ac (SHA); leemsmd@hallym.or.kr (MSL)

Affiliation Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea

Myung Seok Lee

Contributed equally to this work with: Sang Hoon Ahn, Myung Seok Lee

Ahnsh@yuhs.ac (SHA); leemsmd@hallym.or.kr (MSL)

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JYP SHA MSL. Performed the experiments: JYP JH HJY JEY YL MJS SHA MSL. Analyzed the data: JYP TJL MJS SHA MSL. Contributed reagents/materials/analysis tools: JYP JH HJY JEY YL SHA MSL. Wrote the paper: JYP MJS.