-
Clinical significance of first-trimester chorionic bumps: a matched case-control study.
Sana Y, Appiah A, Davison A, Nicolaides KH, Johns J, Ross JA.
Ultrasound Obstet Gynecol 2013;42:585-9. -
Trisomy 13 detection in the first trimester of pregnancy using a chromosome-selective cell-free DNA analysis method.
Ashoor G, Syngelaki A, Wang E, Struble C, Oliphant A, Song K, Nicolaides KH.
Ultrasound Obstet Gynecol 2013;41:21-5. -
Increased nuchal translucency in trisomy 13 fetuses at 10-14 weeks of gestation.
Snijders RJ, Sebire NJ, Nayar R, Souka A, Nicolaides KH.
Am J Med Genet 1999;86:205-7.