- 
    Monozygotic twins discordant for body stalk anomaly.
 Daskalakis GJ, Nicolaides KH.
 Ultrasound Obstet Gynecol 2002;20:79-81.
- 
    A case of body stalk anomaly at 10 weeks of gestation.
 Paul C, Zosmer N, Jurkovic D, Nicolaides K.
 Ultrasound Obstet Gynecol 2001;17:157-9.
- 
    Body stalk anomaly at 10-14 weeks of gestation.
 Daskalakis G, Sebire NJ, Jurkovic D, Snijders RJ, Nicolaides K.
 Ultrasound Obstet Gynecol 1997;10:416-8.
