1. Department of Health Administration, Graduate School, Yonsei University, 1 Yonseidae-gil, Wonju, Gangwon-do 26493, Republic of Korea
2. Yonsei Global Health Center, Yonsei University, 1 Yonseidae-gil, Wonju-si 26493, Republic of Korea
3. Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
4. NHC Key Lab of Health Economics and Policy Research, Shandong University, Jinan 250012, China