1. Department of Neurology, National Neuroscience Institute (Tan Tock Seng Hospital Campus) , Singapore
2. Saw Swee Hock School of Public Health, National University Singapore and National University Health System , Singapore
3. Division of Neurology, Department of Medicine, National University Health System , Singapore
4. Department of Medicine, Yong Loo Lin School of Medicine, National University Singapore , Singapore
5. Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University Singapore , Singapore