Professor and Vice Chair of Neurosurgery, Zucker School of Medicine at Hofstra/Northwell

Professor of Neurosurgery, Alexandria University, Egypt

Consultant Stereotactic Neurosurgery University Hospital Magdeburg

Dell Medical School, The University of Texas at Austin

University of Toronto

Associate Professor of Neurosurgery, Mashhad University of Medical Sciences (MUMS)

Mevis Informática Médica LTDA

Professor of Neurosurgery

Brigham and Women's Hospital