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Effect of cryopreservation with different cytoprotectants on viability and hepatocyte-specific functions of rat hepatocyte microbeads after thawing and maintenance in culture for 7 d (N = 4). (A) Cell viability, (B) albumin production, (C) urea synthesis, and (D) cytochrome P450 family activity. Statistical significance: *P < 0.05, **P < 0.01, ***P < 0.001, and ****P < 0.0001.
