Hogaki, M [Biotelemetry for obstetrics and gynecology. (B) Biotelemetry of fetal signals (author's transl)]. [electronic resource] - Iyo denshi to seitai kogaku. Japanese journal of medical electronics and biological engineering Dec 1980 - 519-25 p. digital Publication Type: Journal Article; Review ISSN: 0021-3292 Subjects--Topical Terms: Biological ClocksDoppler EffectFemaleFetal Monitoring--methodsFetus--physiologyHeart RateHumansLabor, ObstetricPregnancyTelemetry--instrumentationTelephoneTime FactorsUltrasonography