6. Ott Wj.The diagnosis of altered fetal growth.Obstet Gynecol Clin North Am 1988;15:237-63
7. 50.6–83.8% 72.9–94.5% High risk ultrasound scan biometry(AC) 48% General customised fundal chart 88% 27% General SFH specificity sensitivity population
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12. Causes of Growth restriction High risk pregnancy management options 2nd edition p300