1. Toledo Physiotherapy Research Group (GIFTO), Nursing and Physiotherapy School, Castilla La Mancha University, Toledo, Spain
2. Sensorimotor Function Group, Hospital Nacional de Parapléjicos, SESCAM, Toledo, Spain
3. Stoke Mandeville Spinal Research, National Spinal Injuries Centre, Buckinghamshire Healthcare Trust, NHS, Aylesbury, UK
4. Harris Manchester College, Oxford University, UK