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HARTGE, P., WANG, S., BRACCI, P., DEVESA, S., & HOLLY, E.(2006-10-12). Non-Hodgkin Lymphoma. In Cancer Epidemiology and Prevention. : Oxford University Press. Retrieved 25 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195149616.001.0001/acprof-9780195149616-chapter-46.
HARTGE, PATRICIA, SOPHIA S. WANG, PAIGE M. BRACCI, SUSAN S. DEVESA, and ELIZABETH A. HOLLY. "Non-Hodgkin Lymphoma." 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-46.
HARTGE P, WANG SS, BRACCI PM, DEVESA SS, HOLLY EA. Non-Hodgkin Lymphoma. 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-46. Accessed May 25, 2013.