a medical device that conducts fetal cardiotocography in pregnant girls. deciphering and frequency of seismicity in a child

abdomen activity baby babys belly cardiotocography childbearing deciphering diagnostic diagnostics during fetus frequency gestation girl gynaecology gynecology heart heartbeat home hospital lyingin maternity medic medical medicine midwifery mothers obstetrics pregnancy procedure rate research seismicity sensor stomach survey woman womb young