Armstrong A. Hubbard M. Essentials of Musculoskeletal Care 5th ed. Rosemont,IL: American Academy of Orthopedic Surgeons; 2015.
Dutton M. Dutton's Orthopaedic Examination, Evaluation, and Intervention. 3rd ed. New York: McGraw-Hill Medical; 2012.
Kisner C, Colby L. Therapeutic Exercise: Foundations and Techniques. 6th ed. Philadelphia: F. A. Davis Company; 2012.