DOI:
10.1055/s-00000012
Endoscopy
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References
U.S. Cancer Statistics Working Group.
United States Cancer Statistics: 1999–2009 Incidence and Mortality Web-based Report.
Atlanta:
U.S. Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute; 2013 Available at:
www.cdc.gov/uscs Accessed: 21 March 2013
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