2Haesslein HC,Niswander KR.Fetal distress in term pregnancies[].American Journal of Obstetrics and Gynecology.1980
3Clark SL,Gimovsky ML,Miller FC.The scalp stimulation test: a clinical alternative to fetal scalp blood sampling[].American Journal of Obstetrics and Gynecology.1984
4Schifrin BS,Dame L.Fetal heart rate patterns.Prediction of Apgar score[].The Journal of The American Medical Association.1972
5Clark SL,Gimovsky ML,Miller FC.Fetal heart rate response to scalp blood sampling[].American Journal of Obstetrics and Gynecology.1982
6Rice PE,Benedetti TJ.Fetal heart rate acceleration with fetal blood sampling[].Obstetrics and Gynecology.1986