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Kim BJ, Lee DH, Kim MN, Song KY, Cho WI, Lee CK, Kim JY, Kwon OS.Kim BJ, et al. Among authors: kwon os.Am J Clin Dermatol. 2008;9(1):33-7. doi: 10.2165/00128071-200809010-00003.Am J Clin Dermatol. 2008.PMID: 18092841Clinical Trial.