R Belcher

The influence of signal loss on the comparison between computer analyses of the fetal heart rate in labour using pulsed Doppler ultrasound (with autocorrelation) and simultaneous scalp electrocardiogram.

G S Dawes, G. Dawes, J. Spencer, 1987, European journal of obstetrics, gynecology, and reproductive biology.

A comparison of ultrasound (with autocorrelation) and direct electrocardiogram fetal heart rate detector systems.

G S Dawes, G. Dawes, C. Redman, 1983, American journal of obstetrics and gynecology.