About the Authors

Yong Pil Chong

Affiliation Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea

In-Gyu Bae

Affiliation Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Republic of Korea

Sang-Rok Lee

Affiliation Department of Internal Medicine, CheongJu St. Mary's Hospital, CheongJu, Republic of Korea

Jin-Won Chung

Affiliation Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea

Jae-Bum Jun

Affiliation Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea

Eun Ju Choo

Affiliation Department of Internal Medicine, Soon Chun Hyang University Bucheon Hospital, Bucheon, Republic of Korea

Soo-youn Moon

Affiliation Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Republic of Korea

Mi Suk Lee

Affiliation Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Republic of Korea

Min Hyok Jeon

Affiliation Department of Internal Medicine, Soon Chun Hyang University Cheonan Hospital, Cheonan, Republic of Korea

Eun Hee Song

Affiliation Department of Internal Medicine, GangNeung Asan Hospital, University of Ulsan College of Medicine, GangNeung, Republic of Korea

Eun Jung Lee

Affiliation Department of Internal Medicine, Soon Chun Hyang University Seoul Hospital, Seoul, Republic of Korea

Seong Yeon Park

Affiliation Department of Internal Medicine, Dongguk University Ilsan Hospital, Ilsan, Republic of Korea

Yang Soo Kim

yskim@amc.seoul.kr

Affiliation Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea

Competing Interests

The authors have read the journal’s policy and have the following conflicts: Yang Soo Kim has received a research grant funding from Pfizer Pharmaceuticals Korea Ltd. The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials. Yong Pil Chong, In-Gyu Bae, Sang-Rok Lee, Jin-Won Chung, Jae Bum Jun, Eun-Ju Choo, Soo-youn Moon, Mi Suk Lee, Min Hyok Jeon, Eun Hee Song, Eun Jung Lee, and Seong Yeon Park have no competing interests to declare.

Author Contributions

Conceived and designed the experiments: YPC YSK. Performed the experiments: IGB SRL JWC JBJ EJC SYM MHJ EHS EJL SYP. Analyzed the data: YPC EJC MSL. Wrote the paper: YPC YSK.