@article{luz_basto_2013,  title={The opinion of patients with COPD: the process of becoming chronically sick},  volume={18},  ISSN={1413-8123},  url={https://doi.org/10.1590/S1413-81232013000800006},  DOI={10.1590/S1413-81232013000800006},  number={8},  journal={Ciência & Saúde Coletiva},  publisher={ABRASCO - Associação Brasileira de Saúde Coletiva},  author={Luz, Elisabete Lamy and Basto, Marta Lima},  year={2013},  month={Aug},  pages={2221–2228} }