1. 1 National Spinal Injuries Centre, Stoke Mandeville Hospital, Buckinghamshire Healthcare NHS Trust, Aylesbury, Buckinghamshire, UK
2. 2 Stoke Mandeville Spinal Research, Stoke Mandeville Hospital, Aylesbury, Buckinghamshire, UK
3. 3 Buckinghamshire Clinical Commissioning Group, Aylesbury, UK
4. 4 Sensorimotor Function Group, Hospital Nacional de Parapléjicos, SESCAM, Toledo, Spain
5. 5 Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden
6. 6 School of Psychology, University of Buckingham, Buckingham, UK
7. 7 American Academy of Pediatrics, Itasca, Illinois, USA
8. 8 Swiss Paraplegic Centre, Nottwil, Switzerland
9. 9 Harris Manchester College, University of Oxford, Oxford, UK