1. Aerodigestive Research Core Laboratory University of Florida Gainesville Florida U.S.A.
2. Department of Speech, Language, and Hearing Sciences University of Florida Gainesville Florida U.S.A.
3. Breathing Research and Therapeutics Center University of Florida Gainesville Florida U.S.A.
4. Department of Neurology University of Florida Gainesville Florida U.S.A.
5. Department of Surgery University of Florida Gainesville Florida U.S.A.