Monitoring fetal heart rate by telephone.
James
D K
DK
Robertson
P M
PM
D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D005323:Fetal Monitoring / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D003629:Modems; D011247:Pregnancy; D013689:Telephone