2VINTZILEOS A M, EGAN J F, CAMPBELL W A, et al. Asphyxia at birth as determined by cord blood pH measurements in preterm and term gestations: correlation with neonatal outcome [ J ]. J Matem Fet Med, 1992, 1(1) : 7 - 13.
3STREET P, MARCS G S, DAWES D M, et al. Short - term variation in abnormal antenatal fetal heart rate records [ J ]. Am J Obstet Gynecol, 1991, 165(3) : 515 -523.
4SALAMALEKIS E, THOMOPOULOS P, GIANNARIS D, et al. Computerised intrapartum diagnosis of fetal hypoxia based on fetal rate monitoring and fetal pulseoximetry recording utilizing wavelet analysis and neural networks[J]. BJOG, 2002, 109(10): 1137- 1142.
5LESZCZYNSKA GORZELAK B, PONIEDZIALEK CZAJKOWSKA E, OLESZCZUK J. Intrapartum cardiotocography and fetal pulse oximetry in assessing fetal hypoxia [ J ]. lnt J Gynecol Obstet, 2002, 76(1) : 9 -14.
6WILLIAMS K P, GALERNEAU F. Intrapartum fetal heart rate patterns in the prediction of neonatal academia [ J ]. Am J Obstet Gynecol, 2003, 188 ( 3 ) : 820 - 823.
7GALAZIOS G, TRIPSIANIS G, TSIKOURAS P, et al. Fetal distress evalution using and analyzing the variables of antepartum computerized cardiotocography [ J ]. Arch Gynecol Obstet, 2010, 281(2) : 229 -233.
8Struijk PC,Ursem NT,Mathews J,et at. Power spectrum analysis of heart rate and blood flow velocity variability measured in the umbilical and uterine arteries in early pregnancy:a comparative study. Ultrasound Obstet & Gynecol, 2001,17: 316-321.
9Salamalekis E, Thomopoulos P, Giannaris D, et al. Computerised intrapartum diagnosis of fetal hypoxia based on fetal rate monitoring and fetal pulse oximetry recording utilising wavelet analysis and neural networks. BJOG, 2002,109:1137-1142.
10Van Cappellen AM, Heerschap A, Nijhuis JG, et al. Hypoxia,the subsequent systemic metabolic acidosis, and their relationship with cerebral metabolite concentrations: An in vivo study in fetal lambs with proton magnetic resonance spectroscopy. Am J of Obst