2015-07-27
作者：Joseph L. Fitzwater, MD, John Owen, MD, MSPH, Nana-Ama Ankumah, MD, Sukhkamal B. Campbell, MD,Joseph R. Biggio, MD, Jeff M. Szychowski, PhD, and Rodney K. Edwards, MD, MS 译者：谭晓伟
来源：The American College of Obstetricians and Gynecologists. 126(1):5-11, July 2015.
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