RETRACTED: The effect of tiarellic acid on the expressions of matrix metalloproteinase-1 and type 1 procollagen in ultraviolet irradiated cultured human skin fibroblasts

The effect of sativan from Viola verecunda A. GRAY on the expressions of matrix metalloproteinase-1 cause by ultraviolet irradiated cultured primary human skin fibroblasts. J. Ethnopharmacol., 104 (2006) 12-17.