<prompt> Fetal growth restriction is defined as estimated fetal weight is below the --- for their Gestational age3rd percentile5th percentile10th percentile15th percentile  <response>: IUGR is replaced by fetal growth restriction, which was designed to identify fetuses with estimated weight below the 10th percentile for their gestational ages.Reference: Practical guide to High-risk pregnancy and delivery; Chapter 4; Fetal growth restriction 