1. Physical Therapy Unit, Rehabilitation Service, Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain
2. Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Spain
3. Department of Physiotherapy, Facultad de Medicina, Universidad San Pablo—CEU, Boadilla del Monte, Spain
4. Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid, Madrid, Spain
5. Department of Physiotherapy, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain
6. CranioSPain Research Group, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain
7. Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain