1. Wayne State University, Detroit, Michigan, USA
2. University of Wisconsin, Madison, Wisconsin, USA
3. Virginia Mason Medical Center, Seattle, Washington, USA
4. Private practice, Lake Mary, Florida, USA
5. Oklahoma State University, Oklahoma City, Oklahoma, USA
6. University of Texas Rio Grande Valley, Edinburg, Texas, USA
7. Ohio State University, Columbus, Ohio, USA
8. Henry Ford Health Systems, Detroit, Michigan, USA
9. Indiana University, Bloomington, Indiana, USA
10. National Spasmodic Dysphonia Association, Itasca, Illinois, USA
11. University of Pittsburgh Medical, Pittsburgh, Pennsylvania, USA
12. University of Utah School of Medicine, Salt Lake City, Utah, USA
13. Private practice, Sherwood, Arkansas, USA
14. Icahn School of Medicine at Mt Sinai, New York, New York, USA
15. Department of Research and Quality, American Academy of Otolaryngology—Head and Neck Surgery Foundation, Alexandria, Virginia, USA