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MAYNE, S., MORSE, D., & WINN, D.(2006-10-12). Cancers of the Oral Cavity and Pharynx. In Cancer Epidemiology and Prevention. : Oxford University Press. Retrieved 18 Jun. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195149616.001.0001/acprof-9780195149616-chapter-35.
MAYNE, SUSAN T., DOUGLAS E. MORSE, and DEBORAH M. WINN. "Cancers of the Oral Cavity and Pharynx." In Cancer Epidemiology and Prevention. : Oxford University Press, 2006-10-12. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195149616.001.0001/acprof-9780195149616-chapter-35.
MAYNE ST, MORSE DE, WINN DM. Cancers of the Oral Cavity and Pharynx. In: Schottenfeld D, Fraumeni JF. Cancer Epidemiology and Prevention. Oxford University Press; 2006. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195149616.001.0001/acprof-9780195149616-chapter-35. Accessed June 18, 2013.