@article{assad_lee_berger_hanley_1991,  title={Cirurgia cardíaca fetal: características hemodinâmicas da placenta durante circulação extracorpórea},  volume={6},  ISSN={0102-7638},  url={https://doi.org/10.1590/S0102-76381991000100007},  DOI={10.1590/S0102-76381991000100007},  number={1},  journal={Brazilian Journal of Cardiovascular Surgery},  publisher={Sociedade Brasileira de Cirurgia Cardiovascular},  author={Assad, Renato S and Lee, Fan-Yen and Berger, Kim and Hanley, Frank I},  year={1991},  month={Jan},  pages={38–44} }