1. “Summary.” U.S. Bureau of Labor Statistics Occupational Outlook Handout, U.S. Bureau of Labor Statistics, 13 April 2018, www.bls.gov/ooh/personal-care-and-service/fitness-trainers-and-instructors.htm
2. Vocal problems among aerobic instructors and aerobic participants;Heidel;J Commun Disord,1993
3. Occupational Voice Loss;Williams,2005
4. Development and validation of the Voice Handicap Index-10 (VHI-10);Rosen;Lscope,2009
5. Vocal fold pseudocyst: Results of 46 cases undergoing a uniform treatment algorithm;Estes;Lscope,2014