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Cell viability of REC grown on porous disks within SLA-BRECS prior to cryopreservation (A), SLA-BRECS after thaw (B), IM-BRECS prior to cryopreservation (C), and IM-BRECS after thaw (D), where living cells were stained with fluorescein diacetate (green), and dead cells were stained with propidium iodide (red).
