1. Quantitative evaluation of fetal heart rate pattern. I. Processing methods;de Haan;European Journal of Obstetrics and Gynaecology,1971
2. Statistical analysis of variability indices;Kubo;Japanese Journal of Medical Electronics and Biological Engineering,1983
3. Computerized automatic diagnosis of fetal distress with use of external monitoring technique;Maeda,1981
4. Studies on new ultrasonic Doppler fetal actograph and continuous recording of fetal movement;Maeda;Acta Obstetrica et Gynaecologica Japonica,1984
5. Recent progress of technology in obstetrics and gynecology, particularly in perinatal medicine in Japan;Maeda;Medical Progress Through Technology,1987