Preston J. Smith, Brayden J. Gerrie, Kevin E. Varner, Patrick C. McCulloch, David M. Lintner, Joshua D. Harris,
Incidence and Prevalence of Musculoskeletal Injury in Ballet: A Systematic Review Orthopaedic Journal of Sports Medicine. ,vol. 3, pp. 2325967115592621- 2325967115592621 ,(2015) ,
10.1177/2325967115592621