Hayta, Sibel Berksoy, Rukiye Güner, Saliha Özpınar, and Melih Akyol. 2018. “The Effects of Sun Protectıon Behavıours on Actınıc Keratosıs in Older People”. International Journal of Medical Science and Clinical Invention 5 (9):4052-55. https://doi.org/10.18535/ijmsci/v5i9.04.