1. Department of Otolaryngology-Head and Neck Surgery; University of California; Davis, Sacramento; California, U.S.A.
2. Ear Institute, Royal National Throat Nose and Ear Hospital, University College London; London; United Kingdom
3. Department of Clinical Science, Intervention, and Technology; Karolinska Institute; Stockholm; Sweden
4. Department of Medicine, Section of Transplant Nephrology; University of California; Davis, Sacramento; California; U.S.A
5. Department of General Surgery; University of California; Davis, Sacramento; California; U.S.A
6. Department of Anesthesiology; University of California; Davis, Sacramento; California; U.S.A
7. Department of Pathology; University of California; Davis, Sacramento; California; U.S.A.