About the Authors

Jaeyoung Cho

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Sun Mi Choi

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Jinwoo Lee

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Chang-Hoon Lee

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Sang-Min Lee

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Jae-Joon Yim

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Doo Hyun Chung

Affiliations Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea, Department of Pathology, Seoul National University Hospital, Seoul, Republic of Korea

Chul-Gyu Yoo

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Young Whan Kim

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Sung Koo Han

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Young Sik Park

mdyspark@gmail.com

Affiliations Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: JC YSP. Formal analysis: JC YSP CHL YWK. Investigation: JC YSP SMC JL SML JJY CGY SKH. Resources: DHC. Supervision: YSP. Writing – original draft: JC YSP. Writing – review & editing: JC YSP.