1. Department of Otolaryngology – Head and Neck Surgery University of California, San Francisco San Francisco California USA
2. Berman Institute of Bioethics Johns Hopkins University Baltimore Maryland USA
3. Department of Otolaryngology – Head and Neck Surgery McGovern Medical School of the University of Texas Health Science Center at Houston Houston Texas USA
4. Department of Otolaryngology – Head and Neck Surgery Emory University Atlanta Georgia USA
5. Department of Otolaryngology – Head and Neck Surgery Thomas Jefferson University Philadelphia Pennsylvania USA
6. Department of Otolaryngology – Head and Neck Surgery Eastern Virginia Medical School Norfolk Virginia USA
7. Department of Otolaryngology – Head and Neck Surgery University of Missouri Columbia Missouri USA
8. Department of Otolaryngology – Head and Neck Surgery University of Manitoba Winnipeg Canada
9. Department of Otolaryngology – Head and Neck Surgery Johns Hopkins University Baltimore Maryland USA