About the Authors

Kyu-Tae Han

Affiliations Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea, Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea

Suk Yong Jang

Affiliations Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea, Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea, Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

Sohee Park

Affiliation Department of Biostatistics, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea

Kyung Hee Cho

Affiliations Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea, Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea

Ki-Bong Yoo

Affiliation Department of Hospital Management, Eulji University, Seongnam, Republic of Korea

Young Choi

Affiliations Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea, Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea

Eun-Cheol Park

ecpark@yuhs.ac

Affiliations Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea, Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KTH SYJ ECP. Analyzed the data: KTH. Contributed reagents/materials/analysis tools: SP KHC KBY YC. Wrote the paper: KTH.