@article{_simões_bernardo_2017,  title={What is the role of routine ultrasonography performed in the first trimester of low-risk pregnancy?},  volume={63},  ISSN={0104-4230},  url={https://doi.org/10.1590/1806-9282.63.01.4},  DOI={10.1590/1806-9282.63.01.4},  number={1},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={ and Simões, Ricardo and Bernardo, Wanderley M.},  year={2017},  month={Jan},  pages={4–6} }