1. Department of Neurology, Ruhr University Bochum, Bochum 44791, Germany
2. Brain and Mind Centre, University of Sydney and Royal Prince Alfred Hospital, Sydney, NSW, Australia
3. Department of Neurology, Inselspital (Bern University Hospital), University of Bern, Bern, Switzerland
4. Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
5. Department of Multiple Sclerosis Therapeutics, Fukushima Medical University School of Medicine, Fukushima, Japan
6. Department of Neurology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
7. Neurology Department, Multiple Sclerosis Center of Catalonia (Cemcat), Vall d’Hebron University Hospital, Barcelona, Spain
8. Department of Neurology, Institute of Neuroimmunology, Tianjin Medical University General Hospital, Tianjin, China
9. Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, China
10. Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
11. Department of Neurology, West China Hospital, Sichuan University, Chengdu, China