1 Division of Neurology, Department of Medicine and Therapeutics; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
2 Division of Neurology, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
3 Division of Neurology, Department of Medicine and Therapeutics; Margaret K. L. Cheung Research Centre for Management of Parkinsonism; Chow Yuk Ho Technology Centre for Innovative Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
4 Division of Neurology, Department of Medicine and Therapeutics; Li Ka Shing Institute of Health Sciences; Margaret K. L. Cheung Research Centre for Management of Parkinsonism; Chow Yuk Ho Technology Centre for Innovative Medicine; Gerald Choa Neuroscience Centre, School of Biomedical Sciences, Department of Psychiatry, Peter Hung Pain Research Institute, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.