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T Dirschka, S Ekanayake-Bohlig, R Dominicus, R Aschoff, E Herrera-Ceballos, R Botella-Estrada, A Hunfeld, B Schmitz, H Lubbert, S Puig. "Daylight Photodynamic Therapy of Actinic Keratosis with BF-200 ALA compared to MAL." SKIN The Journal of Cutaneous Medicine 1.3.1 (2017) 115