Bermúdez C, Luengas O, Pérez-Wulff J, Genatios U, García V, Guevara-Zuloaga F, Quintero R A
Unidad de Perinatología, Hospital Universitario de Caracas, Universidad Central de Venezuela, Caracas, Venezuela.
University of South Florida, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Tampa, FL, USA.
Ultrasound Obstet Gynecol. 2007 Jan;29(1):97-98. doi: 10.1002/uog.3903.