[1
]
Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia.
[2
]
Department of Cardiology, University of Colorado, Denver, Colorado.
[3
]
Department of Vascular Surgery, Naval and Veterans Hospital of Athens, Athens, Greece.
[4
]
Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia.
[5
]
Department of Neurosurgery, Virginia Commonwealth University, Richmond, Virginia.
[6
]
Department of Otolaryngology-Head and Neck Surgery, Virginia Commonwealth University,
Richmond, Virginia.