1. Co-Lead Author, Guidelines Author Group; Charles A. & Patsy W. Collat Professor of Neurosurgery and Program Director, University of Alabama Neurosurgical Residency Training Program, Division of Neurological Surgery, University of Alabama at Birmingham, Birmingham, Alabama
2. Co-Lead Author, Guidelines Author Group; Professor of Neurological Surgery and Director of Clinical Research, University of Alabama at Birmingham, Birmingham, Alabama; Professor of Neurosciences, Virginia Commonwealth University - Inova Campus and Director of Clinical Research, Department of Neurosciences, Inova Health System, Falls Church, Virginia; Affiliate Professor of Molecular Neurosciences