The role of second-trimester serum screening in the post-first-trimester screening era

Alireza A Shamshirsaz1, Peter Benn, James F X Egan

  • 1Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030-2947, USA.

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