%0 Journal Article %T Early detection of heart action in the fetus and determination of placenta position with the Doppler ultrasonic method %A Tembotova, M. %J Biomedical Engineering %V 8 %N 2 %P 103-105 %@ 0006-3398 %D 2004-10-16 %I Kluwer Academic Publishers-Plenum Publishers %~ DeepDyve