1 Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Medicine, Universidad Complutense de Madrid, Plaza Ramon y Cajal, s/n, 28040, Madrid, Spain. fmaraver@ucm.es.
2 Professional School of Medical Hydrology, Faculty of Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain. fmaraver@ucm.es.
3 Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Medicine, Universidad Complutense de Madrid, Plaza Ramon y Cajal, s/n, 28040, Madrid, Spain.
4 Professional School of Medical Hydrology, Faculty of Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.