Fig. 2From: Umbilical cord-derived mesenchymal stromal cells: predictive obstetric factors for cell proliferation and chondrogenic differentiationDoubling time. Distribution of sample doubling time at passage 1 (P1) and P2. Proliferation capacities of the samples were determined by their doubling time after thawing, at P1 and P2 (n = 50)Back to article page