About the Authors

Myung-Gyu Kim

Affiliation Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea

Su Hee Kim

Affiliation Department of Internal Medicine, Gangneung Asan Hospital, Gangneung, Korea

Hyunjin Noh

Affiliation Department of Internal Medicine, Soonchunhyang University Hospital, Seoul, Korea

Yoon Sook Ko

Affiliation Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea

Hee Young Lee

Affiliation Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea

Sang-Kyung Jo

sang-kyung@korea.ac.kr

Affiliation Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea

Won Yong Cho

Affiliation Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea

Hyoung Kyu Kim

Affiliation Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SKJ MGK. Performed the experiments: MGK SHK HJN YSK HYL JSK. Analyzed the data: MGK YSK HYL JSK WYC HKK. Contributed reagents/materials/analysis tools: SHK HJN. Wrote the manuscript: MGK SKJ.