Ref 1. Eck, Jason C. “Sacroiliac Joint Dysfunction (SI Joint Pain) Causes, Symptoms, Diagnosis, Treatment, and Prevention by MedicineNet.com.” MedicineNet. N.p., n.d. Web. 17 Apr. 2013
Ref 2. Yeomans, Steven G. “Sacroiliac Joint Dysfunction (SI Joint Pain).” Spine-health.com Web 02 Nov. 2010. Retrieved February 3, 2015