1. Health Services and Outcomes Research, National Healthcare Group, Singapore, Singapore.
2. Palliative Care Centre for Excellence in Research and Education, Singapore, Singapore.
3. Department of Palliative Medicine, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, Singapore.
4. Department of Cardiology, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, Singapore.
5. Geriatric Medicine, Khoo Teck Puat Hospital, Singapore, Singapore.
6. Palliative and Supportive Care, Woodlands Health Campus, 2 Yishun Central 2 Tower E, Singapore, Singapore.