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Aim
The aim of this study was to assess the feasibility and accuracy of 3‐D ultrasound indices to evaluate fetal lung maturity, and to establish a normal reference for fetal lung volume (FLV) and fetal lung‐to‐liver intensity ratio (FLLIR) in a Chinese population.
Methods
A total of 1022 pregnant women with singleton pregnancy were prospectively studied between June 2008 to June 2011. Ultrasound...