Reference intervals of embryos/fetuses heart rate between 6 and 14 weeks of pregnancy.

@article{Jnior2014ReferenceIO,
  title={Reference intervals of embryos/fetuses heart rate between 6 and 14 weeks of pregnancy.},
  author={Edward Araujo J{\'u}nior and Raquel Costa and Bruna Cust{\'o}dio Fonseca and Wellington Martins and Cl{\'a}udio Rodrigues Pires and Sebasti{\~a}o Marques Zanforlin Filho},
  journal={The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians},
  year={2014},
  volume={27 13},
  pages={1385-8}
}
OBJECTIVE To determine reference intervals for the embryos/fetuses heart rate (HR) between 6 and 14 weeks of pregnancy. METHODS A retrospective cross-sectional study was carried in a single center with singleton pregnancies of embryos/fetuses with a crown-rump length (CRL) between 5 and 85 mm. The HR was assessed by real time M-mode or spectrum Doppler… CONTINUE READING