“…The definitions of suspected FGR used in the studies were as follows: EFW < 10 th percentile for GA (11 studies) 44,45,47,50,54,[56][57][58][59]62,64 , EFW < 10 th percentile for GA and/or abdominal circumference (AC) < 5 th percentile (two studies) 60,61 , EFW < 10 th percentile for GA and abnormal UA Doppler indices (two studies) 53,63 , AC < 5 th percentile for GA and abnormal UA Doppler indices (two studies) 46,49 , AC< 10 th percentile for GA (one study) 43 , AC < 10 th percentile for GA on at least two consecutive measurements, 2 weeks apart (one study) 55 , EFW < 10 th percentile for GA with growth rate slower than normal and abnormal UA Doppler indices (one study) 48 , EFW or AC < 10 th percentile for GA and abnormal UA Doppler indices (one study) 52 , and EFW below the GA-adjusted mean value minus 2 SD (2.3 rd percentile) or a fall of ≥ 10% weight deviation from the mean weight between two ultrasound examinations (one study) 51 . Ten studies reported results for suspected late-onset FGR 47,50,51,54,[56][57][58][59]62,63 , four for suspected early-onset FGR 47,56,58,61 and 14 for suspected FGR at all GAs [43][44][45][46]…”