1. Department of Otolaryngology-Head and Neck Surgery; Prince of Songkla University Hospital; Hatyai Songkhla Thailand
2. Department of Otolaryngology-Head and Neck Surgery; The University of Texas Medical School at Houston; Houston TX
3. Department of Otolaryngology-Head and Neck Surgery; American University of Beirut; Beirut Lebanon
4. Department of Medicine; Baylor College of Medicine; Houston TX
5. Center for Immunology and Autoimmune Diseases; Institute of Molecular Medicine; The University of Texas Medical School at Houston; Houston TX