1. Department of Geriatric Medicine, Tan Tock Seng Hospital (TTSH), Singapore
2. Institute of Geriatrics and Active Ageing (IGA), TTSH, Singapore
3. Department of Nursing Services, TTSH, Singapore
4. Health Services and Outcomes Research (HSOR), National Healthcare Group, Singapore
5. Department of Nursing Services, Woodlands Health, Singapore
6. Department of Pharmacy, TTSH, Singapore
7. Emergency Department, TTSH, Singapore