@article{vargas_2013,  title={Placental examination: a challenge for pathologists},  volume={49},  ISSN={1676-2444},  url={https://doi.org/10.1590/S1676-24442013000600001},  DOI={10.1590/S1676-24442013000600001},  number={6},  journal={Jornal Brasileiro de Patologia e Medicina Laboratorial},  publisher={Sociedade Brasileira de Patologia Clínica,   },  author={Vargas, Paulo Roberto Merçon de},  year={2013},  month={Dec},  pages={386–387} }