Saade George R, Sibai Baha M, Silver Robert
Department of Obstetrics and Gynecology, The University of Texas Medical Branch, Galveston.
Department of Obstetrics and Gynecology, University of Texas Health Sciences at Houston, Houston.
JAMA Pediatr. 2014 Feb;168(2):190-1. doi: 10.1001/jamapediatrics.2013.4800.