<p>Nezar Mahmoud Hamed MBBS</p> <p>ENT consultant in otolaryngology department, King Abdulaziz University Hospital,</p> <p>Lecturer in King Saud University in Riyadh, Saudi Arabia.</p> <p>Board degree of German specialization in otolaryngology and Head and Neck surgery, Münster</p> <p>University, Germany.</p> <p>Member in King Abdullah Ear Specialist Center, Riyadh, Saudi Arabia.</p>