別用翻譯軟體直接翻譯..
很急要繳交的報告..!!
Although SMRs for all types of cancers were not found significantly increased, ovarian cancer showed a dose–response relationship with duration of employment. The dose–response relationship of ovarian cancer may be due do a biased result. First, our assumption of length of employment may lead to misclassification. Furthermore, because of the small number of deaths even if only one or two cases were misclassified in relation to length of employment, the trend may disappear entirely.