Henrotin, Y., Arden, N., Berenbaum, F., Blanco, F., Castillo, J., Conaghan, P., Hick, A., Hochberg, M., Martel-Pelletier, J., Monfort, J., Möller, I., Pap, T., Pelletier, J., Richette, P., Sawitzke, A., & Du Souich, P. (n.d.). tHU0496 Combined Chondroitin Sulfate and Glucosamine is More Efficient than Celebrex in Reducing Serum Levels of COLL2-1, A Cartilage Degradation Biomarker, In Patients with Severe OA: Results from a Randomized, Double-Blind, Multicentric Clinical Trial. Annals of the rheumatic diseases, 74, 379. http://access.bl.uk/ark:/81055/vdc_100135133659.0x000058