1. Departamento de Fisioterapia, Universidad de Sevilla, Sevilla, Spain.
2. Madrid Osteopathic School, Valencia, Spain.
3. Department of Nursing and Physiotherapy, University of the Balearic Islands, Palma de Mallorca, Spain.
4. Madrid Osteopathic School, Madrid, Spain.
5. Department of Physiatry and Nursing, Faculty of Health Sciences (Physiotherapy), University of Zaragoza, Zaragoza, Spain.