Dirschka, T, S Ekanayake-Bohlig, R Dominicus, R Aschoff, E Herrera-Ceballos, R Botella-Estrada, A Hunfeld, B Schmitz, H Lubbert, and S Puig. “Daylight Photodynamic Therapy of Actinic Keratosis With BF-200 ALA Compared to MAL”. SKIN The Journal of Cutaneous Medicine 1, no. 3.1 (October 27, 2017): s115. Accessed April 19, 2024. https://jofskin.org/index.php/skin/article/view/102.