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Proliferation activity of normal and keloid fibroblasts. Graph represents percent cell proliferation measure by CellTiter 96® proliferation assay in normal (NF1) and keloid (KF1, KF2, KF3, KF4, KF5) fibroblasts with (+HA) or without 72 hour hyaluronic acid treatment. The data is presented as mean ± SEM. Statistical analysis was done using a two-tailed unpaired student's t-test. p <0.05 was used as a criterion for significance.
