1. Department of Sociology, The Chinese University of Hong Kong, Hong Kong, People’s Republic of China
2. Centre for Health Systems and Policy Research, The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, People’s Republic of China
3. Department of Media and Communication, City University of Hong Kong, Hong Kong, People’s Republic of China
4. Institute of Sociology, Beijing, People’s Republic of China