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Günthert, AR; Faber, M; Knappe, G; Hellriegel, S; Emons, G (2008). Early onset vulvar Lichen sclerosus in premenopausal women and oral contraceptives. European journal of obstetrics & gynecology and reproductive biology, 137(1), pp. 56-60. Shannon: Elsevier 10.1016/j.ejogrb.2007.10.005
