Use of cervical elastography at 18 to 22 weeks’ gestation in the prediction of spontaneous preterm birth

Elizabeth Patberg, Matthew Wells, Sevan A. Vahanian, Jose Zavala, Sarmistha Bhattacharya, Diana S. Richmond, Meredith Akerman, Michael Demishev, Wendy Kinzler, Martin Chavez, Anthony M. Vintzileos