1Peking University Shenzhen Hospital, Shenzhen, 518036 China
2Department of Medical Administration, Zhuhai People’s Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, 519000 China
3Department of Epidemiology and Biostatistics, College for Public Health and Social Justice, Saint Louis University, St. Louis, MO 63013 USA
4Department of Health Statistics and Research Development, Chongqing Health Information Center, Chongqing, 401120 China
5West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041 China
6China Center for Special Economic Zone Research, Shenzhen University, Shenzhen, 518060 Guangdong China
7School of Medicine and Health Management, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016 China
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