@article{schlüssel_souza_reichenheim_kac_2008,  title={Physical activity during pregnancy and maternal-child health outcomes: a systematic literature review},  volume={24},  ISSN={0102-311X},  url={https://doi.org/10.1590/S0102-311X2008001600006},  DOI={10.1590/S0102-311X2008001600006},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={Schlüssel, Michael Maia and Souza, Elton Bicalho de and Reichenheim, Michael Eduardo and Kac, Gilberto},  year={2008},  pages={s531–s544} }