@article{reynolds_2018,  title={Sex of children and family structure in Brazil: father & grandmother bias?},  volume={35},  ISSN={0102-3098},  url={https://doi.org/10.20947/S102-3098a0069},  DOI={10.20947/S102-3098a0069},  number={1},  journal={Revista Brasileira de Estudos de População},  publisher={Associação Brasileira de Estudos Populacionais},  author={Reynolds, Sarah Anne},  year={2018},  pages={e0069} }