@article{sader_pignatari_1994,  title={E Test: a novel technique for antimicrobial susceptibility testing},  volume={112},  ISSN={1516-3180},  url={https://doi.org/10.1590/S1516-31801994000400003},  DOI={10.1590/S1516-31801994000400003},  number={4},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Sader, Helio Silva and Pignatari, Antonio Carlos Campos},  year={1994},  month={Oct},  pages={635–638} }