The standardized incidence during the 15-year period showed great fluctuations but overall, there was a decreasing trend from 10.6/100,000 (95%CI: 8.2-13.9) in 1993 to 9.1/100,000 (95%CI: 7.4-11.1) in 2007 ( Table 1 ).
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Trends in incidence of gastrointestinal tract cancers in Western iran, 1993-2007.
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