@article{vork_broadwin_blaisdell_2008,  title={Developing asthma in childhood from exposure to secondhand tobacco smoke: insights from a meta-regression},  volume={13},  ISSN={1413-8123},  url={https://doi.org/10.1590/S1413-81232008000400028},  DOI={10.1590/S1413-81232008000400028},  number={4},  journal={Ciência & Saúde Coletiva},  publisher={ABRASCO - Associação Brasileira de Saúde Coletiva},  author={Vork, Kathleen and Broadwin, Rachel and Blaisdell, Robert},  year={2008},  month={Jul},  pages={1313–1325} }