1 Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Universidad Rey Juan Carlos (URJC), Madrid. Spain; Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark. Electronic address: cesar.fernandez@urjc.es.
2 Department of Internal Medicine-Infectious Department, Research Department, Hospital Universitario Fundación Alcorcón, Madrid, Spain; Department of Medicine, Universidad Rey Juan Carlos (URJC), Madrid, Spain.
4 Department of Internal Medicine, Hospital Universitario Infanta Leonor-Virgen de la Torre, Madrid Spain; Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain.