@article{1991,  title={Lung disease in the tropics},  volume={33},  ISSN={0036-4665},  url={https://doi.org/10.1590/S0036-46651991000400019},  DOI={10.1590/S0036-46651991000400019},  number={4},  journal={Revista do Instituto de Medicina Tropical de São Paulo},  publisher={Instituto de Medicina Tropical de São Paulo},  year={1991},  month={Jul},  pages={312–312} }