Abnormalities of the heart and great arteries in first trimester chromosomally abnormal fetuses
Hyett J, Moscoso G, Nicolaides KH. Abnormalities of the heart and great arteries in first trimester chromosomally abnormal fetuses. Am J Med Genet 1997;69:207-16.
Thirty-one autopsy cases of trisomy 18: Clinical features and pathological findings
Kinoshita M, Nakamura Y, Nakano R, et al. Thirty-one autopsy cases of trisomy 18: clinical features and pathological findings. Pediatr Pathol 1989;9:445-57.
Echocardiographic evaluation of the spectrum of cardiac anomalies associated with trisomy 13 and trisomy 18
Musewe NN, Alexander DJ, Teshima I, et al. Echocardiographic evaluation of the spectrum of cardiac anomalies associated with trisomy 13 and trisomy 18. J Am Coll Cardiol 1990;15:673-7.
Ultrasonographic diagnosis of trisomy 18: Is it practical in the early second trimester?
Shields LE, Carpenter LA, Smith KM, et al. Ultrasonographic diagnosis of trisomy 18: is it practical in the early second trimester? J Ultrasound Med 1998;17:327-31.
Diastolic function of the fetal heart during second and third trimester: A prospective longitudinal Doppler-echocardiographic study
Tulzer G, Khowsathit P, Gudmundsson S, et al. Diastolic function of the fetal heart during second and third trimester: a prospective longitudinal Doppler-echocardiographic study. Eur J Pediatr 1994;153:151-4.
UK multicentre project on assessment of risk of trisomy 21 by maternal age and fetal nuchal-translucency thickness at 10-14 weeks of gestation
Fetal Medicine Foundation First Trimester Screening Group
Snijders RJ, Noble P, Sebire N, et al. UK multicentre project on assessment of risk of trisomy 21 by maternal age and fetal nuchal-translucency thickness at 10-14 weeks of gestation. Fetal Medicine Foundation First Trimester Screening Group. Lancet 1998;352:343-6.