1. Department of OtolaryngologyUniversity of Alabama at Birmingham Birmingham Alabama U.S.A.
2. Department of OtolaryngologyStanford University Stanford California U.S.A.
3. School of MedicineUniversity of Alabama at Birmingham Birmingham Alabama U.S.A.
4. Department of Oral & Maxillofacial SurgeryUniversity of Alabama at Birmingham Birmingham Alabama U.S.A.
5. Department of PathologyUniversity of Alabama at Birmingham Birmingham Alabama U.S.A.