1. Assistant lecturer of physical therapy, Department of Physical Therapy for Neuromuscular Disorders and Its surgery, Faculty of Physical Therapy, MTI University, Cairo, Egypt
2. Professor of physical therapy, Department of Physical Therapy for Neuromuscular Disorders and Its surgery, Faculty of Physical Therapy, Cairo University, Cairo, Egypt
3. Professor of neurology, Faculty of Medicine, Cairo University, Cairo, Egypt
4. Professor of clinical neurophysiology, Faculty of Medicine, Cairo University, Cairo, Egypt
5. Lecturer of physical therapy, Department of Physical Therapy for Neuromuscular Disorders and Its surgery, Faculty of Physical Therapy, Cairo University, Cairo, Egypt