Date Expires, Data Issued, Data of Birth.
有效日期,发证日期,出身日期。
Methods Use retrospective ascertainment methods. Data of birth defect between April 2004 and April 2006 was epidemic described and statistically analyzed.
方法采用回顾性调查方法,对2004年4月至2006年4月出生缺陷资料进行流行病学描述性分析和统计学分析。
However, all the scientists agree that more data is necessary to prove that radon levels in water are associated with the possible birth of an earthquake.
不过,所有的科学家都一致认为,需要更多的资料才能证明水中氡的含量和可能发生的地震有关。
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