1. Department of Physical Medicine and Rehabilitation, La Paz University Hospital-IdiPaz, Madrid, Spain
2. Department of Orthopaedic Surgery, La Paz University Hospital-IdiPaz, Madrid, Spain
3. Department of Hematology, La Paz University Hospital-IdiPaz, Madrid, Spain
4. Radiologia III – Ospedale Policlinico San Martino - Dept. of Health Science, University of Genoa, Genova, Italy