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. 2015 Apr 7;10(4):e0122465. doi: 10.1371/journal.pone.0122465

Fig 1. Source, Morphology and Growth Kinetics of WJ-MSCs.

Fig 1

(A) The umbilical cord compartments. (B) Representative phase-contrast images of WJ-MSCs at Day 2, 7 and 14; 400X magnifications. (C) Growth rate, WJ-MSCs were seeded at a density of 1000 cells/cm2, cellular proliferation was detected in a daily bases. (D) CFU-F, cells were plated at a density of 50 or 100 cells/cm2 for 7–10 days. CFU-F was determined by (number of colonies formed/number of cells inoculated) x 100. *P < 0.05; the significance was evaluated by Student’s t-test.