1. Ashoor G et al. Fetal Diagn Ther. 2012;31(4):237-43.
  2. Ashoor G et al. Am J Obstet Gynecol. 2012;206(4):322.e1-5. 
  3. Nicolaides KH et al. Am J Obstet Gynecol. 2012;207(5):374 e1-6.
  4. Norton ME et al. Am J Obstet Gynecol. 2012;207(2):137.e1--8. 
  5. Sparks et al. Am J Obstet Gynecol. 2012;206(4):319e1-9.
  6. Sparks et al. Prenat Diagn. 2012;32(1):3-9.
  7. Ashoor G et al. Ultrasound Obstet Gynecol. 2013;41(1):21-25. 
  8. Ashoor et al. Ultrasound Obstet Gynecol. 2013;41(1):26-32.
  9. Brar et al. J Matern Fetal Neonatal Med. 2013;26(2)-143-45.
  10. Fairbrother et al. Prenat Diagn. 2013: March 1-5.
  11. Gil MM et al. Ultrasound Obstet Gynecol. 2013;42(1):34-40.
  12. Verweij et al. Prenat Diagn. 2013;33(10):996-1001.
  13. Wang et al. Prenat Diagn. 2013;33(7):662-6. 
  14. Gil MM et al. Fetal Diagn Ther. 2014;35(3):204-211.
  15. Feenstra et al. Prenat Diagn. 2014;34(2):195-8.
  16. Juneau et al. Fetal Diagn Ther. 2014;36(4):282-6. 
  17. Hooks et al. Prenat Diagn. 2014;34(5):496-499.
  18. Nicolaides KH et al. Fetal Diagn Ther. 2014;35(1):1-6.
  19. Struble et al. Fetal Diagn Ther. 2013;35(3):199-203. 
  20. Willems et al. Facts View Vis Obgyn. 2014;6(1):7-12.
  21. Wallerstein et al. J Pregnancy 2014
  22. Bevilacqua et al. Ultrasound Obstet Gynecol. 2015;45(1):61-66. 
  23. Comas et al. J Matern Fetal Neonatal Med. 2015;28(10):1196-1201.
  24. Gil MM et al. Ultrasound Obstet Gynecol. 2015;45(1):67-73.
  25. Hernández-Gómez et al. Ginecol Obstet Mex. 2015;83(5):277-288.
  26. Norton ME et al. N Engl J Med. 2015;372(17):1589-1597.
  27. Quezada et al. Ultrasound Obstet Gynecol. 2015;45(1):101-105.
  28. Quezada et al. Ultrasound Obstet Gynecol. 2015;45(1):36-41.
  29. Stokowski et al. Prenat Diagn. 2015;35(12):1243-1246. 
  30. Chen et al. Prenat Diagn. 2016;36(13):1217-1224.
  31. Gil MM et al. Ultrasound Obstet Gynecol. 2016;47(1):45-52.
  32. Kagan et al. Arch Gynecol Obstet. 2016;294(2):219-224.
  33. Gil MM et al. J Matern Fetal Neonatal Med. 2016: November 1-7.
  34. McLennan et al. Aust NZ J Obstet Gynaecol. 2016;56(1):22-28. 
  35. Revello et al. Ultrasound Obstet Gynecol. 2016;47(6):698-704. 
  36. Sarno et al. Ultrasound Obstet Gynecol. 2016;47(6):705-711. 
  37. Bevilacqua et al. Fetal Diagn Ther. 2017 Aug 23.
  38. Bjerregaard et al. Dan Med J. 2017 Apr;64(4).pii: A5359.
  39. Chan et al. BJOG An Int J Obstet Gynaecol 2017
  40. Jones et al. Ultrasound Obstet Gynecol. 2018 51:274-277.
  41. Kagan et al. Ultrasound Obstet Gynecol. 2017 Sep 19
  42. Kornman et al. Fetal Diagn Ther. 2017 Sep 6
  43. Langlois et al. Prenat Diagn. 2017 37(12) 1238-1244. 
  44. Miltoft et al. Ultrasound Obstet Gynecol. 2017 Jun 22.
  45. Richardson et al. Prenat Diagn. 2017 Dec 37(13) 1298-1304.
  46. Schmid et al. Fetal Diagn Ther. 2017 Nov 8
  47. Scott et al. J Matern Neonatal Med. June 8 2017:1-8.
  48. Rolnik et al. Ultrasound Obstet Gynecol. 2018 Jan 10