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Letter to the Editor

Equation errors for umbilical vein diameter in “Modelling umbilical vein blood flow normograms at 14–40 weeks of gestation by quantile regression analysis.”

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Reference

  • Rizzo G, Rizzo L, Aiello E, et al. Modelling umbilical vein blood flow normograms at 14–40 weeks of gestation by quantile regression analysis. J Matern Fetal Neonatal Med. 2016;29(5):701–706.

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