Comment on

• Prediction of early pregnancy viability in the absence of an ultrasonically detectable embryo.

  Elson J, Salim R, Tailor A, Banerjee S, Zosmer N, Jurkovic D. Elson J, et al. Ultrasound Obstet Gynecol. 2003 Jan;21(1):57-61. doi: 10.1002/uog.1. Ultrasound Obstet Gynecol. 2003. PMID: 12528163
• Sonography of pregnancies with first-trimester bleeding and a small intrauterine gestational sac without a demonstrable embryo.

  Falco P, Zagonari S, Gabrielli S, Bevini M, Pilu G, Bovicelli L. Falco P, et al. Ultrasound Obstet Gynecol. 2003 Jan;21(1):62-5. doi: 10.1002/uog.2. Ultrasound Obstet Gynecol. 2003. PMID: 12528164