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Zollinger, Therese; Mertz, Kirsten D; Schmid, Mirka; Schmitt, Anja; Pfaltz, Madeleine; Kempf, Werner (2010). Borrelia in granuloma annulare, morphea and lichen sclerosus: a PCR-based study and review of the literature. Journal of cutaneous pathology, 37(5), pp. 571-7. Copenhagen: Wiley-Blackwell 10.1111/j.1600-0560.2009.01493.x
