1. Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
2. Department of Health, Sports & Welfare/Cluster Oral Hygiene, Inholland University of Applied Sciences, Amsterdam, The Netherlands
3. Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
4. Social Determinants of Health Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
5. Department of Nursing, School of Health and Welfare, Jönköping University, Jönköping, Sweden
6. Department of Psychology, The University of Sheffield, Sheffield, UK