Retraction notice to "The effect of tiarellic acid on the expressions of matrix metalloproteinase-1 and type 1 procollagen in ultraviolet irradiated cultured human skin fibroblasts" [J. Ethnopharmacol. 98 (2005) 185-189]
1 Department of Dermatology, Seoul National University College of Medicine, and Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea. [email protected]