About the Authors

Yeongkeun Kwon

Affiliations Department of Family Medicine, Korea University College of Medicine, Seoul, South Korea, Center for Obesity and Metabolic Diseases, Korea University Anam Hospital, Seoul, South Korea

Hyun Jung Kim

Affiliation Institute for Evidence-based Medicine, The Korean Branch of Australasian Cochrane Center, Department of Preventive Medicine, Korea University College of Medicine, Seoul, South Korea

Sungsoo Park

Affiliations Center for Obesity and Metabolic Diseases, Korea University Anam Hospital, Seoul, South Korea, Division of Upper Gastrointestinal Surgery, Department of Surgery, Korea University College of Medicine, Seoul, South Korea

Yong-Gyu Park

Affiliation Department of Biostatistics, The Catholic University of Korea College of Medicine, Seoul, South Korea

Kyung-Hwan Cho

kukwon@korea.ac.kr

Affiliation Department of Family Medicine, Korea University College of Medicine, Seoul, South Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: YK K-HC. Formal analysis: YK HJK Y-GP. Investigation: YK HJK Y-GP K-HC. Methodology: YK HJK Y-GP. Supervision: SP K-HC. Visualization: YK HJK. Writing – original draft: YK.