2. https://www.hopkinsarthritis.org/arthritis-info/osteoarthritis/oa-pathophysiology/
4. http://www.orthobullets.com/spine/2045/dish-diffuse-idiopathic-skeletal-hyperostosis
5. http://www.orthobullets.com/spine/2045/dish-diffuse-idiopathic-skeletal-hyperostosis
6. http://www.ncbi.nlm.nih.gov/pubmed/8730125
7. http://ard.bmj.com/content/58/11/675.full
8. http://ard.bmj.com/content/58/11/675.full
9. http://www.aafp.org/afp/2001/0715/p279.html
10. http://www.aafp.org/afp/2001/0715/p279.html
11. http://www.aafp.org/afp/2001/0715/p279.html
12. http://www.aafp.org/afp/2001/0715/p279.html
13. http://www.aafp.org/afp/2001/0715/p279.html
15. http://www.cochrane.org/CD004020/MUSKEL_braces-and-orthoses-for-osteoarthritis-of-the-knee