[Evolution of pregnancy and fetal cardiovascular activity registered precursory through the Doppler effect (preliminary report)].
D005260:Female; D005318:Fetal Heart; D005865:Gestational Age; D006326:Heart Auscultation; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis; D014463:Ultrasonography
Evolución de la preñez y actividad cardiocirculatoria fetal registrada precozmente por efecto Doppler (communicación previa)