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SHIBATA, A., & PARSONNET, J.(2006-10-12). Stomach Cancer. In Cancer Epidemiology and Prevention. : Oxford University Press. Retrieved 26 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195149616.001.0001/acprof-9780195149616-chapter-37.
SHIBATA, ATSUKO, and JULIE PARSONNET. "Stomach Cancer." 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-37.
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