1. Pittsburgh Ear Associates, Philadelphia; Pennsylvania
2. Division of Otolaryngology, Philadelphia; Pennsylvania
3. Allegheny Health Network, Pittsburgh, Philadelphia; Pennsylvania
4. Department of Otolaryngology; Temple University; Philadelphia Pennsylvania
5. Department of Otolaryngology; Western Reserve Hospital; Cuyahoga Falls Ohio
6. Department of Otolaryngology, Baton Rouge; Louisiana
7. Neurosurgery, Baton Rouge; Louisiana
8. Louisiana State University New Orleans, Baton Rouge; Louisiana
9. CNC Hearing and Balance Center, New Orleans, Baton Rouge; Louisiana
10. Our Lady of the Lake Hearing and Balance Center, Baton Rouge; Louisiana