1. Clinical experience with the oxytocin challenge test;Ray;Am. J. Obstet. Gynecol,1972
2. Fetal demise following a negative contraction stress test;Evertson;Obstet. Gynecol,1978
3. A study of fetal heart rate acceleration patterns;Lee;Obstet. Gynecol,1975
4. Fetal activity-acceleration determination for the evaluation of fetal reserve;Lee;Obstet. Gynecol,1976
5. Fetal heart rate acceleration in veiation to the oxytocin challenge test;Farahani;Obstet. Gynecol,1977