@article{beiguelman_franchi-pinto_2000,  title={Perinatal mortality among twins and singletons in a city in southeastern Brazil, 1984-1996},  volume={23},  ISSN={1415-4757},  url={https://doi.org/10.1590/S1415-47572000000100003},  DOI={10.1590/S1415-47572000000100003},  number={1},  journal={Genetics and Molecular Biology},  publisher={Sociedade Brasileira de Genética},  author={Beiguelman, Bernardo and Franchi-Pinto, Carla},  year={2000},  month={Mar},  pages={15–23} }