Reinhold U, Dirschka T, Ostendorf R, Aschoff R, Berking C, Philipp-Dormston W, Szeimies R. Follow-up results of a randomized, double-blind, phase III, multi-center study to evaluate the safety and efficacy of BF-200 ALA versus placebo in field-directed treatment of mild to moderate AK with photodynamic therapy when using narrowband red light. J of Skin [Internet]. 2019Nov.9 [cited 2024Sep.20];3:S49. Available from: https://dermsquared.com/skin/article/view/777