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Production of type 1 procollagen in ultraviolet B (UVB)-irradiated human dermal fibroblasts treated with (a) 50S and (b) 50SFMKUF5. The mean ± standard deviation (SD) values of three independent experiments were analyzed using a two-way analysis of variance (ANOVA) and Dunnett’s test (* p < 0.05 and ** p < 0.01).
