7Keith P, Williams, Galemeau. lntrapartum fetal heart rate patterns in the prediction of neonatal acidemia. Am J Obstet Gynecol, 2003, 188:82O.
8National Institute of Child and Development Research Planning Workshop. Electronic fetal heart rate monitoring: Research guidelines for interpretation. 1997, 177:1385.
9James A, Helen. Killen E, Jane Derrick. The prediction and prevention of intrapartum fetal asphyxia in preterm pregnancies. Am J Obstet Gynecol, 2002, 186:279.
10ChaUisa JRRG, Smith J, Younis H et al . Endocrine Signals and Preterm Labor. Biol Neonate, 2001, 79:163.