预估值很不确定而且不太可能通过国家癌症统计查明这些国家中的任何增加情况3 。
Predicted estimates are very uncertain and it is very unlikely that any increase in these countries will be detectable using national cancer statistics .3
总的来说,根据2007年加拿大癌症统计报告,癌症列表中死亡率每年下降2%以上持续了很长时间而且这个比例仍在增长。
Overall, the list of cancers that are decreasing at more than 2% per year is long and growing, according to Canadian cancer Statistics 2007.
据统计,黑人比白人更不容易被委托做肾脏移植或早期癌症手术。
Blacks are statistically less likely than whites to be referred for kidney transplants or early-stage cancer surgery.
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