Dirschka, T., Reinhold, U., Foguet, M., Novak, B., Schmitz, B., Luebbert, H. and Szeimies, R. M. (2017) “Photodynamic Therapy for Actinic Keratosis and Field Cancerization Using BF-200 ALA: Results of Pivotal Phase III Trials and Follow-Up”, SKIN The Journal of Cutaneous Medicine, 1(3.1), p. s117. doi: 10.25251/skin.1.supp.116.