Authors: Jun Zhang; Helain J Landy; D Ware Branch; Ronald Burkman; Shoshana Haberman; Kimberly D Gregory; Christos G Hatjis; Mildred M Ramirez; Jennifer L Bailit; Victor H Gonzalez-Quintero; Judith U Hibbard; Matthew K Hoffman; Michelle Kominiarek; Lee A Learman; Paul Van Veldhuisen; James Troendle; Uma M Reddy Journal: Obstet Gynecol Date: 2010-12 Impact factor: 7.661