Characterization of mature vs aged rabbit articular cartilage: analysis of cell density, apoptosis-related gene expression and mechanisms controlling chondrocyte apoptosis. - Todd,A.R.; Robertson,C.M.; Harwood,F.L.; Sasho,T.; Williams,S.K.; Pomerleau,A.C.; Amiel,D. (Osteoarthritis Cartilage, 2004)