American Journal of Obstetrics and Gynecology · 1966 · 57 citations · 0 references
MedicineMaternal HealthObstetricsObstetric UltrasoundUltrasonographyUltrasoundFetal BiometryMotion SensorsObstetric UltrasonographyTransducer TechnologyUltrasonicsUltrasound PhysicsFetal Movement DetectionPregnancy UltrasonographyPrenatal UltrasonographyUltrasonic Motion SensingUltrasonic Sensors