[文献资料]参 考 文 献

Surveillance，Epidemiology，and End Results（SEER）Program . SEER * Stat Data-base：Incidence-SEER 9 Regs Public Use，Nov . 2011 Sub（1973-2010）-Linked to County Attributes-Total US，1969-2011 Counties . Bethesda。Aspirin and the risk of colorectal cancer in women ......