1、Older programs have established live birth rates based on years of experience.
更老方案多年的活胎出生率。

2、Change in the miscarriage rate, live birth rate per cycle started, or the multiple pregnancy rate.
流產(chǎn)率，已啟動的周期活胎出生率或多胎妊娠率的變化。

3、A number of relevant outcomes including pregnancy and live birth rates were investigated.
包括妊娠率和活產(chǎn)率在內的多項相關結果被研究。

4、(informal) the live birth of a child.
（非正式）活胎產(chǎn)活產(chǎn)。

5、RESULTS Clinical pregnancy and live birth rates were 58 and 56%, respectively.
結果：臨床妊娠率和活產(chǎn)率分別為58和56%。

6、It is also important to understand the definitions of pregnancy rates and live birth rates.
解讀妊娠率和活胎出生率的定義也是重要的。

live birth翻譯