Aigner, T., Zien, A., Gehrsitz A, Gebhard, P., & McKenna, L. (2001). Anabolic and Catabolic Gene Expression Pattern Analysis in Normal Versus Osteoarthritic Cartilage Using Complementary DNA-Array Technology. Arthritis and Rheumatism, 44(12), 2777-2789. Retrieved from http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrievedb=PubMedlist_uids=12223049dopt=Abstract.