About the Authors

Hye Won Lee

Contributed equally to this work with: Hye Won Lee, Soo Young Park

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

Soo Young Park

Contributed equally to this work with: Hye Won Lee, Soo Young Park

Affiliation Department of Internal Medicine, Kyungpook National University Hospital, Kyungpook National University College of Medicine, Seoul, Korea

Seung Up Kim

ksukorea@yuhs.ac (SUK); jyjaung@schmc.ac.kr (JYJ)

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

Jae Young Jang

ksukorea@yuhs.ac (SUK); jyjaung@schmc.ac.kr (JYJ)

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

Hana Park

Affiliation Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Bundang, Korea

Ja Kyung Kim

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

Chun Kyon Lee

Affiliation National Health Insurance Cooperation, Ilsan Hospital, Ilsan, Korea

Young Eun Chon

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

Kwang-Hyub Han

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SUK JYJ. Performed the experiments: HWL SYP. Analyzed the data: HWL SYP. Contributed reagents/materials/analysis tools: HP JKK CKL YEC KHH. Wrote the paper: HWL SUK.