1. Clinical experience with the oxytocin challenge test;Ray;Am. J. Obstet. Gynecol,1972
2. Fetal demise following negative contraction stress tests;Evertson;Obstet. Gynecol,1978
3. Baseline fetal heart rate characteristics as an indicator of fetal status during the antepartum period;Trierweiler;Am. J. Obstet. Gynecol,1976
4. Fetal activity acceleration determination for the evaluation of fetal reserve;Lee;Obstet. Gynecol,1976
5. Fetal heart rate acceleration in relation to the oxytocin challenge test;Farahani;Obstet. Gynecol,1977