1. Physical Therapy Program, Health SciencesDepartment, Universidad Nacional de la Matanza, Buenos Aires, Argentina
2. Physical Therapy Program, UniversidadMaimónides, City of Buenos Aires, Argentina
3. Physical Therapy Program, Medical School, Universidad de Buenos Aires
4. Physical TherapyUnit, Acute Care Hospital “Carlos G. Durand”. City of BuenosAires, Argentina
5. Departments of Physical Therapyand Otolaryngology, University of Pittsburgh, Pittsburgh, PA, USA