@article{luna fº_1999,  title={Rational utilization of diagnostic tests in cardiology},  volume={72},  ISSN={0066-782X},  url={https://doi.org/10.1590/S0066-782X1999000100003},  DOI={10.1590/S0066-782X1999000100003},  number={1},  journal={Arquivos Brasileiros de Cardiologia},  publisher={Sociedade Brasileira de Cardiologia - SBC},  author={Luna Fº, Bráulio},  year={1999},  month={Jan},  pages={45–50} }