Bruised Kneecap: References

DeLee J, Drez D, Miller M. Orthopaedic Sports Medicine: Principles and Practice, Saunders; 4th ed. 2014.

Kisner C, Colby L. Therapeutic Exercise: Foundations and Techniques. 6th ed. Philadelphia: F. A. Davis Company; 2012.

Greene W, Griffin L. Essentials Of Musculoskeletal Care. 4th ed. Rosemont, Ill.: American Academy of Orthopaedic Surgeons; 2015.