Prof Vincenzo Berghella, Professor, Department of Obstetrics and Gynecology, Director, Division of Maternal Fetal Medicine, Thomas Jefferson University, 834 Chestnut Street, Suite 400, Philadelphia, PA 19107, USA. firstname.lastname@example.org.
This is the protocol for a review and there is no abstract. The objectives are as follows:
To assess the effectiveness of management based on fetal fibronectin testing for preventing preterm birth.