Paul, J., Dagrosa, A. T., Chen, Y., Gangar, P., Ressler, D. and Chapman, M. S. (2020) “Photodynamic Therapy with δ-Aminolevulinic Acid and Blue Light for the Treatment of Actinic Cheilitis”, SKIN The Journal of Cutaneous Medicine, 4(4), pp. 357-360. doi: 10.25251/skin.4.4.14.