1. Department of Medicine, National University Hospital, Singapore
2. Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
3. Division of Respiratory and Critical Care Medicine, Department of Medicine, National University Hospital, Singapore
4. Healthy Ageing Programme, Alexandra Hospital, Singapore
5. Fast and Chronic Programmes, Alexandra Hospital, Singapore
6. Division of Advanced Internal Medicine, Department of Medicine, National University Hospital, Singapore