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Isolation of MSCs derived from non-vitrified, vitrified and CPA-free WJ tissue. MSCs derived from fresh non-vitrified WJ-tissue (n = 10) at day 7 (A), 12 (D) and 18 (G). MSCs derived from vitrified WJ tissue (n = 10) at day 7 (B), 12 (E) and 18 (H). No MSCs were able to be isolated from CPA-free (n = 10) WJ tissue at day 7 (C), 12 (F) and 18 (I). Original magnification 10×, scale bars 100 μm.
