References
- Eik-Nes SH, Okland O, Aure JC, Ulstein M. Ultrasound screening in pregnancy: a randomised controlled trial (letter). Lancet 1984; i: 1347.
- Neilson JP, Munjanja SP, Whitfield CR. Screening for small for dates fetuses: a controlled trial. BMJ 1984; 289: 1179–82.
- Duff G. A randomized controlled trial in a hospital population of ultrasound measurements screening for the small for dates babies. Aust N Z J Obstet Gynaecol 1993; 33: 374–8.
- Newnham JP, Evans SF, Michael CA, Stanley FJ, Landau LI. Effects of frequent ultrasound during pregnancy: a randomised controlled trial. Lancet 1993; 342: 887–91.
- Proud J, Grant AM. Third trimester placental grading by ultrasonography as a test of fetal wellbeing. BMJ 1987; 294: 1641–4.
- Ewigman BG, Crane JP, Frigoletto FD, LeFevre ML, Bain RP, McNellis D et al. Effect of prenatal ultrasound screening on perinatal outcome. N Engl J Med 1993; 329: 821–7.
- Bakketeig LS, Jacobsen G, Brodtkorb CJ, Eriksen BC, Eik-Nes SH, Ulstein MK et al. Randomised controlled trial of ultrasonographic screening in pregnancy. Lancet 1984; ii: 207–10.
- Bricker L, Neilson J. Routine ultrasound in late pregnancy (after 24 weeks gestation/Cochrane Review). In: The Cochrane Library, Issue 2, Oxford: Update Software, 2000.
- Neilson J, Alfirevic Z. Doppler ultrasound in high risk pregnancies. In: Neilson J, Crowther C, Hodnett E, Hofmeyr G, Keirse M (eds): Cochrane Pregnancy and Childbirth Module of the Cochrane Database of Systematic Reviews. Oxford: The Cochrane Collaboration, BMJ Publishing Group, 1997.
- Crang-Svalenius E, Jörgensen C, Mariscal UB. Intrauterine growth of the fetus at term. A prospective and longitudinal study with real-time ultrasound. J Ultrasound Med 1990; 9: 35–8.
- Persson PH, Weldner BM. Reliability of ultrasound fetometry in estimating gestational age in the second trimester. Acta Obstet Gynecol Scand 1986; 65: 481–3.
- Cnattingius S, Ericson A, Gunnarskog J, Källén B. A quality study of a Medical Birth Registry. Scand J Soc Med 1990; 18: 143–8.
- Rydhström H, Grennert L. Population ultrasound: the Swedish experience. In: Keith LG, Papiernik E, Keith DM, Luke B (eds): Multiple Pregnancy. Epidemiology, Gestation and Perinatal Outcome. New York: Parthenon Publishing, 1995: 205–14.
- The Swedish Medical Birth Register. A summary ofcontent and quality. Retrieved from http://www.sos.se/fulltext/112/2003-112-3/2003-112-3.pdf.
- Källén B. A birthweight for gestational age standard based on data in the Swedish Medical birth registry 1985–1989. Eur J Epidemiol 1995; 11: 601–6.
- Miettinen OS. Simple interval estimation of risk ratio. Am J Epidemiol 1974; 100: 515–6.
- Mantel N, Haenszel W. Statistical aspects of analysis of data from retrospective studies of disease. J Natl Cancer Inst 1959; 22: 719–48.
- Hindmarsh PC, Geary MPP, Rodeck CH, Kingdom JCP, Cole TJ. Intrauterine growth and its relationship to size and shape at birth. Pediatr Res 2002; 52: 263–8.
- Farrell T, Holmes R, Stone P. The effect of body mass index on three methods of fetal weight estimation. Br J Obstet Gynaecol 2002; 109: 651–7.
- Bonnet D, Coltri A, Butera G, Fermont L, Le Bidois J, Kachaner J et al. Detection of transposition of the great arteries in fetuses reduces neonatal morbidity and mortality. Circulation 1999; 99: 916–8.