-
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. -
Umbilical cord hematoma associated with an umbilical cord cyst and fetal death at 28 weeks of gestation.
Brown R, Nicolaides K.
J Ultrasound Med 2000;19:223-225.