Dirschka T, Ulrich M, Reinhold U, Dominicus R, Aschoff R, Szeimies R. Photodynamic therapy with BF-200 ALA for the treatment of mild to severe actinic keratosis on extremities and trunk/neck: Results of a randomized Phase III trial. J of Skin [Internet]. 2019 Nov. 9 [cited 2024 Jul. 4];3:S47. Available from: https://jofskin.org/33014/index.php/skin/article/view/775