| Affiliation: | 1. Department of Physical Therapy, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Universidad Complutense de Madrid, Madrid, Spain;2. Department of Thoracic Surgery, Hospital Universitario Jimenez Díaz, Madrid, Spain;3. Departamento de Medicina Física y Rehabilitación-Hidrología Médica, Universidad Complutense de Madrid, Madrid, Spain;4. Department of Radiology, Rehabilitation, and Physical Therapy, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain;5. Respiratory Care Department, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Universidad Complutense de Madrid, Madrid, Spain;6. Private Clinic, Madrid, Spain;7. Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile;8. Nursing Research Support Unit, Hospital General Universitario Gregorio Marañon, Madrid, Spain |
