Equilibrium modulus of the explants from study 1 (A, immature bovine) and study 2 (B, mature bovine); dynamic modulus of the explants from study 1 (C, immature bovine) and study 2 (D, mature bovine) obtained at a testing frequency of 0.5 Hz; and explant volume (normalized to day 0) of study 1 (E, immature bovine) and study 2 (F, mature bovine). *P <.05 versus day 0.