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Autor:
Rose-Ann Hardwick, J M Richards, G. L. D. Gibbens, D P Southall, E A Shinebourne, M de Swiet, H. Thelwall-Jones, P G B Johnston
Publikováno v:
Archives of disease in childhood. 55(7)
The fetal heart beat, detected by ultrasound, was recorded for five minutes from 934 antenatal women--266 at 30 to 35 weeks' gestation and 718 at 36 to 41 weeks. Episodes of bradycardia < 100/minute ranging from 5-30 seconds' duration occurred in 3 (