Arisi, M. et al. 2026. Evaluation of 30% Urea Pretreatment in Enhancing the Efficacy of Photodynamic Therapy for Actinic Keratoses of the Scalp. Dermatology Practical & Conceptual. 16, (Mar. 2026), 6578. DOI:https://doi.org/10.5826/dpc.1602a6578.