1. School of Nursing The Hong Kong Polytechnic University Hung Hom Hong Kong SAR China
2. WHO Collaborating Center for Community Health Services The Hong Kong Polytechnic University Hung Hom Hong Kong SAR China
3. Department of Geography and Resource Management The Chinese University of Hong Kong Hung Hom Hong Kong SAR China
4. Department of Statistics The Chinese University of Hong Kong Hung Hom Hong Kong SAR China