Authors: Neil Hamill; Roberto Romero; Sonia Hassan; Wesley Lee; Stephen A Myers; Pooja Mittal; Juan Pedro Kusanovic; Mamtha Balasubramaniam; Tinnakorn Chaiworapongsa; Edi Vaisbuch; Jimmy Espinoza; Francesca Gotsch; Luis F Goncalves; Shali Mazaki-Tovi; Offer Erez; Edgar Hernandez-Andrade; Lami Yeo Journal: Am J Obstet Gynecol Date: 2012-12-07 Impact factor: 8.661