The American Cancer Society estimates that well over one million patients are diagnosed with skin cancer each year, representing over half of all invasive and in situ cancers that occur in the United States each year . The magnitude of these statistics suggests that the treatment of skin cancer in the United States is a problem both for patients and for the healthcare system. Conclusive evidence has demonstrated that the main environmental risk factor for developing skin cancer is exposure to the ultraviolet components in sunlight, primarily ultraviolet B wavelengths (UVB) [2-6]. Although skin cancer can occur at any age, there is a strong correlation between the development of skin cancer and advancing age . In fact, the majority of skin cancers are found in people over the age of 60; therefore, age is also a risk factor for the development of skin cancer [1, 7].
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