Defining normal and abnormal fetal growth: promises and challenges

American Journal of Obstetrics and Gynecology

Volumn 202, Issue 6, 2010, Pages 522-528

  Zhang, Jun ^a   Merialdi, Mario ^b   Platt, Lawrence D ^c   Kramer, Michael S ^d  

^a EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH AND HUMAN DEVELOPMENT   (United States)

^b WORLD HEALTH ORGANIZATION   (Switzerland)

^c UNIVERSITY OF CALIFORNIA   (United States)

^d MCGILL UNIVERSITY   (Canada)

Author keywords

biomarker; definition; Doppler; fetal growth; restriction; standard

Indexed keywords

ACCURACY; ANTHROPOMETRIC PARAMETERS; DOPPLER ECHOGRAPHY; FETUS GROWTH; FETUS WEIGHT; GESTATIONAL AGE; HUMAN; INTRAUTERINE GROWTH RETARDATION; NOMENCLATURE; PARAMETERS CONCERNING THE FETUS, NEWBORN AND PREGNANCY; POPULATION RESEARCH; PRENATAL CARE; PRENATAL SCREENING; PRIORITY JOURNAL; REVIEW; STANDARD;

FEMALE; FETAL DEVELOPMENT; FETAL GROWTH RETARDATION; GESTATIONAL AGE; HUMANS; INFANT, NEWBORN; INFANT, SMALL FOR GESTATIONAL AGE; PREGNANCY; REFERENCE VALUES;

EID: 77952745761     PISSN: 00029378     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ajog.2009.10.889     Document Type: Review

References (121)

1. Gluckman P.D., Hanson M.A., Cooper C., and Thornburg K.L. Effect of in utero and early-life conditions on adult health and disease. N Engl J Med 359 (2008) 61-73
2. American College of Obstetricians and Gynecologists. Intrauterine growth restriction. Clinical management guidelines for obstetricians-gynecologists: practice bulletin no. 12. ACOG (2000)
3. Lubchenco L.O., Hansman C., Dressler M., and Boyd E. Intrauterine growth as estimated from liveborn birth-weight data at 24 to 42 weeks of gestation. Pediatrics 32 (1963) 793-800
4. Brenner W.E., Edeman D.A., and Hendricks C.H. A standard of fetal growth for the United States of America. Am J Obstet Gynecol 126 (1976) 555-564
5. Williams R.L., Creasy R.K., Cunninghaqm G.C., Hawes W.E., Norris F.D., and Tashiro M. Fetal growth and perinatal viability in California. Obstet Gynecol 59 (1982) 624-632
6. Zhang J., and Bowes Jr. W.A. Birth-weight-for-gestational-age patterns by race, sex, and parity in the United States population. Obstet Gynecol 86 (1995) 200-208
7. Alexander G.R., Himes J.H., Kaufman R.B., Mor J., and Kogan M. A United States national reference for fetal growth. Obstet Gynecol 87 (1996) 163-168
8. Kramer M.S., Platt R.W., Wen S.W., et al. A new and improved population-based Canadian reference for birth weight for gestational age. Pediatrics 108 (2001) e35
9. Weiner C.P., Sabbagha R.E., Vaisrub N., and Depp R. A hypothetical model suggesting suboptimal intrauterine growth in infants delivered preterm. Obstet Gynecol 65 (1985) 323-326
10. Secher N.J., Hansen P.K., Thomsen B.L., and Keiding N. Growth retardation in preterm infants. BJOG 94 (1987) 115-120
11. Ott W.J. Intrauterine growth retardation and preterm birth. Am J Obstet Gynecol 168 (1993) 1710-1717
12. Hediger M.L., Scholl T.O., Schall J.I., Miller L.W., and Fischer R.L. Fetal growth and the etiology of preterm delivery. Obstet Gynecol 85 (1995) 175-182
13. Zeitlin J., Ancel P.Y., Saurel-Cubizolles M.J., and Papiernik E. The relationship between intrauterine growth restriction and preterm delivery: an empirical approach using data from a European case-control study. BJOG 107 (2000) 750-758
14. Bukowski R., Gahn D., Denning J., and Saade G. Impairment of growth in fetuses destined to deliver preterm. Am J Obstet Gynecol 185 (2001) 463-467
15. Gardosi J.O. Prematurity and fetal growth restriction. Early Hum Dev 81 (2005) 43-49
16. Morken N.H., Kallen K., and Jacobsson B. Fetal growth and onset of delivery: a nationwide population-based study of preterm infants. Am J Obstet Gynecol 195 (2006) 154-161
17. Hutcheon J.A., Zhang X., Cnattingius S., Kramer M.S., and Platt R.W. Customized birthweight percentiles: does adjusting for maternal characteristics matter?. BJOG 115 (2008) 1397-1404
18. Ott W.J., and Doyle S. Normal ultrasound fetal weight curve. Obstet Gynecol 59 (1982) 603-606
19. Marsal K., Persson P.H., Larsen T., Lilja H., Selbing A., and Sultan B. Intrauterine growth curves based on ultrasonically estimated foetal weights. Acta Paediatr 85 (1996) 843-848
20. Cooke R.W.I. Conventional birth weight standards obscure fetal growth restriction in preterm infants. Arch Dis Child Fetal Neonatal Ed 92 (2007) F189-F192
21. Zhang X., Platt R.W., Cnattingius S., Joseph K.S., and Kramer M.S. The use of customized versus population-based birthweight standards in predicting perinatal mortality. BJOG 114 (2007) 474-477
22. Deter R.L., Harrist R.B., Hadlock F.P., and Poindexter A.N. Longitudinal studies of fetal growth with the use of dynamic image ultrasonography. Am J Obstet Gynecol 143 (1982) 545-554
23. Jeanty P., Cantraine F., Romero R., Cousaert E., and Hobbins J.C. A longitudinal study of fetal weight growth. J Ultrasound Med 3 (1984) 321-328
24. Hadlock F.P., Harrist R.B., and Martinez-Poyer J. In utero analysis of fetal growth: a sonographic weight standard. Radiology 181 (1991) 129-133
25. Gallivan S., Robson S.C., Chang T.C., Vaughan J., and Spencer J.A.D. An investigation of fetal growth using serial ultrasound data. Ultrasound Obstet Gynecol 3 (1993) 109-114
26. Altman D.G., and Chitty L.S. Charts of fetal size: 1, methodology. BJOG 101 (1994) 29-34
27. Snijders R.J.M., and Nicolaides K.H. Fetal biometry at 14-40 weeks' gestation. Ultrasound Obstet Gynecol 4 (1994) 34-48
28. Mongelli M., and Gardosi J. Longitudinal study of fetal growth in subgroups of a low-risk population. Ultrasound Obstet Gynecol 6 (1995) 340-344
29. Kurmanavicius J., Wright E.M., Royston P., et al. Fetal ultrasound biometry: 1, head reference values. BJOG 106 (1999) 126-135
30. Kurmanavicius J., Wright E.M., Royston P., et al. Fetal ultrasound biometry: 2, abdomen and femur length reference values. BJOG 106 (1999) 136-143
31. Di Battista E., Bertino E., Benso L., et al. Longitudinal distance standards of fetal growth. Acta Obstet Gynecol Scand 79 (2000) 165-173
32. Jacquemyn Y., Sys S.U., and Verdonk P. Fetal biometry in different ethnic groups. Early Hum Development 57 (2000) 1-13
33. Nascrat H., and Bondagji N.S. Ultrasound biometry of Arabian fetuses. Intl J Gynecol Obstet 88 (2005) 173-178
34. Johnsen S.L., Rasmussen S., Wilsgaard T., Sollien R., and Kiserud T. Longitudinal reference ranges for estimated fetal weight. Acta Obstet Gynecol Scand 85 (2006) 286-297
35. Johnsen S.L., Wilsgaard T., Rasmussen S., Sollien R., and Kiserud T. Longitudinal reference charts for growth of the fetal head, abdomen and femur. Eur J Obstet Gynecol Reprod Bio 127 (2006) 172-185
36. Salomon L.J., Duyme M., Crequat J., et al. French fetal biometry: reference equations and comparison with other charts. Ultrasound Obstet Gynecol 28 (2006) 193-198
37. Jung S.I., Lee Y.H., Moon M.H., et al. Reference charts and equations of Korean fetal biometry. Prenat Diagn 27 (2007) 545-551
38. Leung T.N., Pang M.W., Daljit S.S., et al. Fetal biometry in ethnic Chinese: biparietal diameter, head circumference, abdominal circumference and femur length. Ultrasound Obstet Gynecol 31 (2008) 321-327
39. Owen P., Donnet M.L., Ogston S.A., Christie A.D., Howie P.W., and Patel N.B. Standards for ultrasound fetal growth velocity. BJOG 103 (1996) 60-69
40. Merialdi M., Caulfield L.E., Zavaleta N., et al. Fetal growth in Peru: comparisons with international fetal size charts and implications for fetal growth assessment. Ultrasound Obstet Gynecol 26 (2005) 123-128
41. Stratton J.F., Scanaill S.N., Stuart B., and Turner M.J. Are babies of normal birth weight who fail to reach their growth potential as diagnosed by ultrasound at increased risk?. Ultrasound Obstet Gynecol 5 (1995) 114-118
42. Owen P., Harrold A.J., and Farrell T. Fetal size and growth velocity in the prediction of intrapartum caesarean section for fetal distress. BJOG 104 (1997) 445-449
43. Overpeck M.D., Hediger M.L., Zhang J., Trumble A.C., and Klebanoff M.A. Birth weight for gestational age of Mexican American infants born in the United States. Obstet Gynecol 93 (1999) 943-947
44. Rossavik I.K., and Deter R.L. Mathematical modeling of fetal growth: I, Basic principles. J Clin Ultrasound 12 (1984) 529-533
45. Rossavik I.K., and Deter R.L. Mathematical modeling of fetal growth: II, head cube (A), abdominal cube (B) and their ratio (A/B). J Clin Ultrasound 12 (1984) 535-545
46. Rossavik I.K., and Deter R.L. Mathematical modeling of fetal growth: III, evaluation of head growth using the head profile area. J Clin Ultrasound 15 (1987) 23-30
47. Rossavik I.K., and Deter R.L. Mathematical modeling of fetal growth: IV, evaluation of trunk growth using the abdominal profile area. J Clin Ultrasound 15 (1987) 31-35
48. Deter R.L., Rossavik I.K., Harrist R.B., and Hadlock F.P. Mathematic modeling of fetal growth: development of individual growth curve standards. Obstet Gynecol 68 (1986) 156-161
49. Deter R.L., and Rossavik I.K. A simplified method for determining individual growth curve standards. Obstet Gynecol 70 (1987) 801-806
50. Smith G.C.S., Smith M.F.S., McNay M.B., and Fleming J.E.E. First-trimester growth and the risk of low birth weight. N Engl J Med 339 (1998) 1817-1822
51. Bukowski R., Smith G.C.S., Malone F.D., et al. Fetal growth in early pregnancy and risk of delivering low birth weight infant: prospective cohort study. BMJ 334 (2007) 836
52. Pedersen N.G., Figueras F., Wojdemann K.R., Tabor A., and Gardosi J. Early fetal size and growth as predictors of adverse outcome. Obstet Gynecol 112 (2008) 765-771
53. Gardosi J., Mongelli M., Wilcox M., and Chang A. An adjustable fetal weight standard. Ultrasound Obstet Gynecol 6 (1995) 168-174
54. Shields L.E., Huff R.W., Jackson G.M., Olive D.L., and Patterson R.M. Fetal growth: a comparison of growth curves with mathematical modeling. J Ultrasound Med 5 (1993) 271-274
55. Pineau J.C., Thiebaugeorges O., and Guihard-Costa A.M. Optimal standards for fetal biometry: to each measurement its fitting model. Fetal Diagn Ther 21 (2006) 396-399
56. Gardosi J., Chang A., Kalyan B., Sahota D., and Symonds E.M. Customised antenatal growth charts. Lancet 339 (1992) 283-287
57. Ariyuki Y., Hata T., and Kitao M. Evaluation of perinatal outcome using individualized growth assessment: comparison with conventional methods. Pediatrics 96 (1995) 36-42
58. Clausson B., Gardosi J., Francis A., and Cnattingius S. Perinatal outcome in SGA births defined by customized versus population-based birthweight standards. BJOG 108 (2001) 830-834
59. Owen P., Farrell T., Hardwick J.C., and Khan K.S. Relationship between customized birthweight centiles and neonatal anthropometric features of growth restriction. BJOG 109 (2002) 658-662
60. Bukowski R. Fetal growth potential and pregnancy outcome. Semin Perinatol 28 (2004) 51-58
61. Groom K.M., Poppe K.K., North R.A., and McCowan L.M.E. Small-for-gestational-age infants classified by customized or population birthweight centiles: impact of gestational age at delivery. Am J Obstet Gynecol 197 (2007) 239.e1-239.e5
62. Lyon V., Howatson A., Khan K.S., and Owen P. Unadjusted and customized weight centiles in the identification of growth restriction among stillborn infants. BJOG 111 (2004) 1460-1463
63. Danielian P.J., Allman A.C.J., and Steer P.J. Is obstetric and neonatal outcome worse in fetuses who fail to reach their own growth potential?. BJOG 99 (1992) 452-454
64. Sanderson D.A., Wilcox M.A., and Johnson I.R. The individualized birthweight ratio: a new method of identifying intrauterine growth retardation. BJOG 101 (1994) 310-314
65. Bernstein I.N., Mohs G., Rucquoi M., and Badger G.J. Case for hybrid "fetal growth curves": a population-based estimation of normal fetal size across gestational age. J Matern Fetal Med 5 (1996) 124-127
66. Sciscione A.C., Gorman R., and Callan N.A. Adjustment of birth weight standards for maternal and infant characteristics improves the prediction of outcome in the small-for-gestational-age infant. Am J Obstet Gynecol 175 (1996) 544-547
67. Bukowski R., Uchida T., Smith G.C.S., et al. Individualized norms of optimal fetal growth: fetal growth potential. Obstet Gynecol 111 (2008) 1065-1076
68. Wilcox A.J., and Skjaerven R. Birth weight and perinatal mortality: the effect of gestational age. Am J Public Health 82 (1992) 378-382
69. Turan S., Miller J., and Baschat A.A. Integrated testing and management in fetal growth restriction. Semin Perinatol 32 (2008) 194-200
70. Ott W.J. Intrauterine growth restriction and Doppler ultrasonography. J Ultrasound Med 19 (2000) 661-665
71. Baschat A.A., and Weiner C.P. Umbilical artery Doppler screening for detection of the small fetus in need of antepartum surveillance. Am J Obstet Gynecol 182 (2000) 154-158
72. Ott W.J. Diagnosis of intrauterine growth restriction: comparison of ultrasound parameters. Am J Perinatol 19 (2002) 133-137
73. Baschat A.A. Integrated fetal testing in growth restriction: combining multivessel Doppler and biophysical parameters. Ultrasound Obstet Gynecol 21 (2003) 1-8
74. Baschat A.A., Galan H.L., Bhide A., et al. Doppler and biophysical assessment in growth restricted fetuses: distribution of test results. Ultrasound Obstet Gynecol 27 (2006) 41-47
75. Salafia C.M., Minior V.K., Pezzullo J.C., Popek E.J., Rosenkrantz T.S., and Vintzileos A.M. Intrauterine growth restriction in infants of less than thirty-two weeks' gestation: associated placental pathologic features. Am J Obstet Gynecol 173 (1995) 1049-1057
76. Baschat A.A., and Hecher K. Fetal growth restriction due to placental disease. Semin Perinatol 28 (2004) 67-80
77. Baschat A.A., Gembruch U., and Harman C.R. The sequence of changes in Doppler and biophysical parameters as severe fetal growth restriction worsens. Ultrasound Obstet Gynecol 18 (2001) 571-577
78. Harman C.R., and Baschat A.A. Comprehensive assessment of fetal wellbeing: which Doppler tests should be performed?. Curr Opin Obstet Gynecol 15 (2003) 147-157
79. Cnossen J.S., Morris R.K., ter Riet G., et al. Use of uterine artery Doppler ultrasonography to predict preeclampsia and intrauterine growth restriction: a systematic review and bivariable meta-analysis. CMAJ 178 (2008) 701-711
80. Westergaard H.B., Langhoff-Roos J., Lingman G., Marsal K., and Kreiner S. A critical appraisal of the use of umbilical artery Doppler ultrasound in high-risk pregnancies: use of meta-analyses in evidence-based obstetrics. Ultrasound Obstet Gynecol 17 (2001) 466-476
81. Fong K.W., Ohlsson A., Hannah M.E., et al. Prediction of perinatal outcome in fetuses suspected to have intrauterine growth restriction: Doppler US study of fetal cerebral, renal, and umbilical arteries. Radiology 213 (1999) 681-689
82. Joern H., and Rath W. Comparison of Doppler sonographic examinations of the umbilical and uterine arteries in high-risk pregnancies. Fetal Diagn Ther 13 (1998) 150-153
83. Kofinas A.D., Penry M., and Hatjis C.G. Compliance-weight deficit index: combining umbilical artery resistance and growth deficit for predicting intrauterine growth retardation and poor perinatal outcome. J Reprod Med 39 (1994) 595-600
84. Maulik D., Frances Evans J., and Ragolia L. Fetal growth restriction: pathogenic mechanisms. Clin Obstet Gynecol 49 (2006) 219-227
85. Gagnon A., Wilson R.D., Audibert F., et al. Obstetrical complications associated with abnormal maternal serum markers analytes. J Obstet Gynaecol Can 30 (2008) 918-932
86. Crispi F., Dominguez C., Llurba E., Martin-Gallan P., Cabero L., and Gratacos E. Placental angiogenic growth factors and uterine artery Doppler findings for characterization of different subsets in preeclampsia and in isolated intrauterine growth restriction. Am J Obstet Gynecol 195 (2006) 201-207
87. Romero R., Nien J.K., Espinoza J., et al. A longitudinal study of angiogenic (placental growth factor) and anti-angiogenic (soluble endoglin and soluble vascular endothelial growth factor receptor-1) factors in normal pregnancy and patients destined to develop preeclampsia and deliver a small for gestational age neonate. J Matern Fetal Neonatal Med 21 (2008) 9-23
88. Chaiworapongsa T., Espinoza J., Gotsch F., et al. The maternal plasma soluble vascular endothelial growth factor receptor-1 concentration is elevated in SGA and the magnitude of the increase relates to Doppler abnormalities in the maternal and fetal circulation. J Matern Fetal Neonatal Med 21 (2008) 25-40
89. Papageorghiou A.T., and Leslie K. Uterine artery Doppler in the prediction of adverse pregnancy outcome. Curr Opinion Obstet Gynecol 19 (2007) 103-109
90. Espinoza J., Romero R., Nien J.K., et al. Identification of patients at risk for early onset and/or severe preeclampsia with the use of uterine artery Doppler velocimetry and placental growth factor. Am J Obstet Gynecol 196 (2007) 326.e1-326.e13
91. Bersinger N.A., and Ødegård R.A. Second- and third-trimester serum levels of placental proteins in preeclampsia and small-for-gestational age pregnancies. Acta Obstet Gynecol Scand 83 (2004) 37-45
92. Peck J.D., Hulka B.S., Savitz D.A., Baird D., Poole C., and Richardson B.E. Accuracy of fetal growth indicators as surrogate measures of steroid hormone levels during pregnancy. Am J Epidemiol 157 (2003) 258-266
93. Dunger D.B., Petry C.J., and Ong K.K. Genetic variations and normal fetal growth. Horm Res 65 suppl (2006) 34-40
94. Kaku K., Osada H., Seki K., and Sekiya S. Insulin-like growth factor 2 (IGF2) and IGF2 receptor gene variants are associated with fetal growth. Acta Paediatr 96 (2007) 363-367
95. Osada H., Seki K., and Sekiya S. Genetic variations within the insulin gene region are associated with accelerated fetal growth. Tohoku J Exp Med 212 (2007) 27-34
96. Combs C.A., Rosenn B., Miodovnik M., and Siddiqi T.A. Sonographic EFW and macrosomia: is there an optimum formula to predict diabetic fetal macrosomia?. J Matern Fetal Med 9 (2000) 55-61
97. Catalano P.M., Tyzbir E.D., Allen S.R., McBean J.H., and McAuliffe T.L. Evaluation of fetal growth by estimation of neonatal body composition. Obstet Gynecol 79 (1992) 46-50
98. Anderson N.G., Jolley I.J., and Wells J.E. Sonographic estimation of fetal weight: comparison of bias, precision and consistency using 12 different formula. Ultrasound Obstet Gynecol 30 (2007) 173-179
99. Scioscia M., Vimercati A., Ceci O., Vicino M., and Selvaggi L.E. Estimation of birth weight by two-dimensional ultrasonography. Obstet Gynecol 111 (2008) 57-65
100. O'Reilly-Green C., and Divon M. Sonographic and clinical methods in the diagnosis of macrosomia. Clin Obstet Gynecol 43 (2000) 309-320
101. Chauhan S.P., Lutton P.M., Bailey K.J., Guerrier J.P., and Morrison J.C. Intrapartum clinical, sonographic, and parous patients' estimates of newborn birth weight. Obstet Gynecol 79 (1992) 956-958
102. Hendrix N.W., Grady C.S., and Chauhan S.P. Clinical vs sonographic estimate of birth weight in term parturients: a randomized clinical trial. J Reprod Med 45 (2000) 317-322
103. Mintz M.C., Landon M.B., Gabbe S.G., et al. Shoulder soft tissue width as a predictor of macrosomia in diabetic pregnancies. Am J Perinatol 6 (1989) 240
104. Sood A.K., Yancey M., and Richards D. Prediction of fetal macrosomia using humeral soft tissue thickness. Obstet Gynecol 85 (1995) 937-940
105. Abramowicz J.S., Robischon K., and Cox C. Incorporating sonographic cheek-to-cheek diameter, biparietal diameter, and abdominal circumference improves weight estimation in the macrosomic fetus. Ultrasound Obstet Gynecol 9 (1997) 409-413
106. Petrikovsky B.M., Oleschuk C., Lesser M., Gelertner N., and Gross B. Prediction of fetal macrosomia using sonographically measured abdominal subcutaneous tissue thickness. J Clin Ultrasound 25 (1997) 378-382
107. Gardeil F., Greene R., Stuart B., and Turner M.J. Subcutaneous fat in the fetal abdomen as a predictor of growth restriction. Obstet Gynecol 94 (1999) 209-212
108. Larciprete G., Di Pierro G., Barbati G., et al. Could birthweight prediction models be improved by adding fetal subcutaneous tissue thickness?. J Obstet Gynecol Res 34 (2008) 18-26
109. Sabbagha R.E., Minogue J., Tamura R.K., and Hungerford S.A. Estimation of birth weight by use of ultrasonographic formulas targeted to large-, appropriate-, and small-for-gestational-age fetuses. Am J Obstet Gynecol 160 (1989) 854-862
110. Robson S.C., Gallivan S., Walkinshaw S.A., Vaughan J., and Rodeck C.H. Ultrasonic estimation of fetal weight: use of targeted formulas in small for gestational age fetuses. Obstet Gynecol 82 (1993) 359-364
111. Favre R., Bader A.M., and Nisand G. Prospective study on fetal weight estimation using limb circumferences obtained by three-dimensional ultrasound. Ultrasound Obstet Gynecol 6 (1996) 140-144
112. Chang F.M., Liang R.I., Ko H.C., Yao B.L., Chang C.H., and Yu C.H. Three-dimensional ultrasound-assessed fetal thigh volumetry in predicting birth weight. Obstet Gynecol 90 (1997) 331-339
113. Lee W., Comstock C.H., Kirk J.S., et al. Birthweight prediction by three-dimensional ultrasonographic volumes of the fetal thigh and abdomen. J Ultrasound Med 16 (1997) 799-805
114. Liang R.I., Chang F.M., Yao B.L., Chang C.H., Yu C.H., and Ko H.C. Predicting birthweight by fetal upper-arm volume with use of three-dimensional ultrasonography. Am J Obstet Gynecol 177 (1997) 632-638
115. Schild R.L., Fimmers R., and Hansmann M. Fetal weight estimation by three-dimensional ultrasound. Ultrasound Obstet Gynecol 16 (2000) 445-452
116. Zelop C.M. Prediction of fetal weight with the use of three-dimensional ultrasonography. Clin Obstet Gynecol 43 (2000) 321-325
117. Song T.B., Moore T.R., Lee J.Y., Kim Y.H., and Kim E.K. Fetal weight prediction by thigh volume measurement with three-dimensional ultrasonography. Obstet Gynecol 96 (2000) 157-161
118. Lee W., Deter R.L., Ebersole J.D., Huang R., Blanckaert K., and Romero R. Birth weight prediction by three-dimensional ultrasonography: fractional limb volume. J Ultrasound Med 20 (2001) 1283-1292
119. Sokol R.J., Chik L., Dombrowski M.P., and Zador I.E. Correctly identifying the macrosomic fetus: improving ultrasonography-based prediction. Am J Obstet Gynecol 182 (2000) 1489-1495
120. Nahum G.G., Stanislaw H., and Huffaker B.J. Accurate prediction of term birth weight from prospectively measurable maternal characteristics. J Reprod Med 44 (1999) 705-712
121. McIntire D.D., Bloom S.L., Casey B.M., and Leveno K.J. Birth weight in relation to morbidity and mortality among newborn infants. N Engl J Med 340 (1999) 1234-1238