Cheol UM ; Yoo Seok CHUNG ; Eun Sil JHANG ; Kyung Seok KANG ; Sung Nam CHO ; Jong Deok KIM
Korean Journal of Obstetrics and Gynecology 1991;34(12):1663-1669
No abstract available. Acoustic Stimulation* ; Acoustics* ; Female ; Fetal Heart* ; Fetus* ; Heart Rate, Fetal* ; Pregnancy