1. Food and Drug Administration. Sunscreen drug products for over-the counter human use. Propos. Rules. 2019;84 (38):6204–75.
2. Epidemiology of skin cancer;Leiter;Adv Exp Med Biol,2014
3. Epidemiological trends in skin cancer;Apalla;Dermatol Pract Concept,2017
4. National Cancer Institute. Melanoma of the skin—cancer stat facts. Natl. Cancer Inst. 2018.
5. Metastatic basal cell carcinoma: a case report and literature review. How accurate is our incidence data?;Wadhera;Dermatol Online J,2006