看看这个？情况比较复杂。

来源: 26484915 于 2014-08-14 11:07:09 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (91 bytes)

http://www.cdph.ca.gov/data/statistics/Documents/MO-CA-PAMR-MaternalDeathReview-2002-03.pdf

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• Why is maternal mortality rising? -26484915- ♂ 给 26484915 发送悄悄话 26484915 的博客首页 (2425 bytes) () 08/14/2014 postreply 11:09:21

• make sense: 4 potential factors, and one more factor is -ME_Professor- ♂ 给 ME_Professor 发送悄悄话 (138 bytes) () 08/14/2014 postreply 11:22:15

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