• Role of second-trimester genetic sonography after Down syndrome screening.

      Aagaard-Tillery, Kjersti M; Malone, Fergal D; Nyberg, David A; Porter, T Flint; Cuckle, Howard S; Fuchs, Karin; Sullivan, Lisa; Comstock, Christine H; Saade, George R; Eddleman, Keith; et al. (2009-12)
      To estimate the effectiveness of second-trimester genetic sonography in modifying Down syndrome screening test results.