Authors: Vincenzo Berghella; Jeff M Szychowski; John Owen; Gary Hankins; Jay D Iams; Jeanne S Sheffield; Annette Perez-Delboy; Deborah A Wing; Edwin R Guzman Journal: J Matern Fetal Neonatal Med Date: 2012-05-14
Authors: Catrin Tudur-Smith; Andrea L Jorgensen; Zarko Alfirevic; Paula R Williamson Journal: BMC Pregnancy Childbirth Date: 2005-02-23 Impact factor: 3.007