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Fiechter, Sabine; Skaria, André; Nievergelt, Helga; Anex, Romain; Borradori, Luca; Parmentier, Laurent (2012). Facial basal cell carcinomas recurring after photodynamic therapy: a retrospective analysis of histological subtypes. Dermatology, 224(4), pp. 346-51. Basel: Karger 10.1159/000339335
