1. Nonstressed fetal heart rate monitoring in the antepartum period;Rochard;Am. J. Obstet. Gynecol.,1976
2. Fetal activity acceleration determination for the evaluation of fetal reserve;Lee;Obstet. Gynecol.,1976
3. Antepartum fetal heart rate testing: The nonstress test;Everton;Am. J. Obstet. Gynecol.,1978
4. Daily fetal movement recording and fetal prognosis;Sadovsky;Obstet. Gynecol.,1973
5. Fetal movements in human pregnancies in the third trimester;Manning;Obstet. Gynecol.,1979