1 School of Public Health, Sun Yat-sen University, Guangzhou, China.
2 Sun Yat-sen Global Health Institute, Institute of State Governance, Sun Yat-sen University, Guangzhou, China.
3 Graduate School of Public Health, St. Luke's International University, Tokyo, Japan.
4 Centre for Health Behaviours Research, Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.