References

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[2] Barker, R. L., and Coletta G. C. (1986). Performance of Protective Clothing. ASTM International.

[3] Definitions. Retrieved March 1, 2008, from Pharmagel Official Site web site: http://www.pharmagel.net/definitions.php

[4] Kühnel, W. (2003). Color Atlas of Cytology, Histology, and Microscopic Anatomy. 4th ed. Thieme.

[5] Keipert, J. A. (1990). Essential Pediatric Dermatology. Taylor & Francis.

[6] What is non-melanoma skin cancer? Retrieved March 4, 2008, from Canadian Cancer Society web site: http://www.cancer.ca/ccs/internet/standard/0,2939,3172_10175_87619_langId-en,00.html

[7] McClay, E. F., and Smith, J. (2003). 100 Questions & Answers about Melanoma and Other Skin Cancers. Jones & Bartlett Publishers.

[8] Barnhill, R. L. (2004). Pathology of Malignant Melanoma. Springer.

[9] Colditz, G. A. (2000). Cancer Prevention: The Causes and Prevention of Cancer. Springer.