Chapter 6. Basic Science of Immunology in OrthopaedicsMensah KA and O’Keefe RJ. Orthopaedic Basic Science: Foundations of Clinical Practice, Fourth Edition. Eds. O'Keefe RJ, Jacobs JJ, Chu CR, and Einhorn TA. Rosemont, IL: American Academy of Orthopaedic Surgeons, 2013.