Pietrosimone, B., Nissman, D., Harkey, M., Creighton, A., Kamath, G., Blackburn, J., Padua, D., Marshall, S., Golightly, Y., Nelson, A., Healy, K., Schmitz, R., Driban, J., Loeser, R., Jordan, J., & Spang, J. (n.d.). decreased proteoglycan composition in the articular cartilage of the lateral femoral condyle of the knee associates with decreased quality of life in individuals twelve months following anterior cruciate ligament reconstruction: A preliminary study. Osteoarthritis and cartilage, 24, S286–S287. http://access.bl.uk/ark:/81055/vdc_100031256474.0x000041