1. Division of Otolaryngology, Department of Surgery, University of Alabama at Birmingham, AL, United States
2. Department of Anatomy, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
3. Institute of Human Anatomy, Department of Molecular Medicine, University of Padova, Padova, Italy
4. Department of Anatomical Sciences, School of Medicine, St George's University, Grenada, West Indies
5. Pediatric Neurosurgery, Children's of Alabama, Birmingham, AL, United States
6. Division of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard University, Boston, MA, United States