1. Centre for Ageing Research and Education, Duke-NUS Medical School, Singapore, Singapore
2. Department of Safety and Occupational Health, Trade Union University, Hanoi, Vietnam
3. Department of Political Theory, Trade Union University, Hanoi, Vietnam
4. Department of Social Sciences, Trade Union University, Hanoi, Vietnam
5. Trade Union University, Hanoi, Vietnam
6. Department of Foreign Language, Trade Union University, Hanoi, Vietnam