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Summary of expression levels of COX-2, MMP-2, and MMP-3 in UVB-induced SCC and normal skin
COX-2: cyclooxygenase-2, MMP: matrix metalloproteinase, UVB: ultraviolet B, SCC: squamous cell carcinoma. +: weakly positive, ++: moderately positive, +++: strongly positive, -: negative.
