摘要

<正>1原文摘要Objective The goal of this study was to examine the intra-operator and inter-operator differences of the manual and semiautomated nuchal translucency(NT)measurements and to evaluate if these differences alter women's risk status.Methods A cross sectional study was performed.Two operators obt...

  • 出版日期2013
  • 单位湖北省妇幼保健院

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