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Kligman DE, Draelos ZD.Kligman DE, et al. Among authors: draelos zd.Dermatol Surg. 2004 Jun;30(6):864-6. doi: 10.1111/j.1524-4725.2004.30254.x.Dermatol Surg. 2004.PMID: 15171763Clinical Trial.