Agata, J., D. Valentina, O. Teresa, C. Giorgio, B. Giacomo, D. M. Sergio, and R. Marco. “The Relapse Rate in Patients With Actinic Keratosis Treated With Diclofenac Sodium 3% Gel”. International Journal of Medical Science and Clinical Invention, Vol. 6, no. 2, Feb. 2019, pp. 4313-7, doi:10.18535/ijmsci/v6i2.06.