1. Department of Physical Therapy for Musculoskeletal Disorders and its Surgery, Faculty of Physical Therapy, October 6 University, Egypt
2. Department of Physical Therapy for Musculoskeletal Disorders and Its Surgery, Faculty of Physical Therapy, Cairo University, Cairo, Egypt; Faculty of Physical Therapy, Nahda University, Beni Sueif, Egypt.
3. Department of Orthopedic Surgery, Faculty of Medicine, Cairo University, Egypt
4. Department of Physical Therapy, Faculty of Health Sciences, Beirut Arab University, Lebanon
5. Department of Physical Therapy for Musculoskeletal Disorders and Its Surgery, Faculty of Physical Therapy, Cairo University, Cairo, Egypt