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van der Steen PH, van Baar HM, Boezeman JB, van Erp PE, van Vlijmen IM, van de Kerkhof PC.van der Steen PH, et al. Among authors: van baar hm.Clin Exp Dermatol. 1992 Sep;17(5):316-20. doi: 10.1111/j.1365-2230.1992.tb00219.x.Clin Exp Dermatol. 1992.PMID: 1281054
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