1. National Hospital for Neurology and Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
2. Department of Neurology, Shanxi Provincial People’s Hospital, Taiyuan, 030012, Shanxi Province, China
3. Section for Nutrition Research, Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, Imperial College London, London, UK.
4. Faculty of Life Science and Medicine, King's College London, London, UK
5. Department of Neurology, Barts Health NHS Trust, Whipps Cross Hospital, London, UK