1. Department of Otolaryngology–Head and Neck Surgery University of Minnesota School of Medicine Minnesota Minneapolis USA
2. Department of Otolaryngology–Head and Neck Surgery Eastern Virginia Medical School Virginia Norfolk USA
3. Department of Otorhinolaryngology Mayo Clinic Phoenix Arizona USA
4. Department of Otorhinolaryngology–Head and Neck Surgery, McGovern Medical School The University of Texas Health Science Center at Houston Houston Texas USA
5. Department of Otolaryngology–Head and Neck Surgery University of Rochester Rochester New York USA
6. Center for Immunology and Autoimmune Diseases, Institute of Molecular Medicine, McGovern Medical School The University of Texas Health Science Center at Houston Houston Texas USA