1. NMR Research Unit, Queen Square MS Centre, Department of Neuroinflammation, UCL Institute of Neurology, London, UK
2. Medical Statistics Department, London School of Hygiene and Tropical Medicine, London, UK
3. Centre for Medical Image Computing (CMIC), Department of Medical Physics and Bioengineering, University College London, London, UK
4. Universitat Oberta de Catalunya, Barcelona, Spain
5. Lysholm Department of Neuroradiology, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
6. Brain Connectivity Center, C. Mondino National Neurological Institute, Pavia, Italy
7. Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
8. Department of Radiology and Nuclear Medicine, VU University Medical Centre, Amsterdam, The Netherlands
9. National Institute for Health Research (NIHR) University College London Hospitals Biomedical Research Centre, UK