@article{knobel_1999,  title={Cardiogenic shock},  volume={72},  ISSN={0066-782X},  url={https://doi.org/10.1590/S0066-782X1999000400002},  DOI={10.1590/S0066-782X1999000400002},  number={4},  journal={Arquivos Brasileiros de Cardiologia},  publisher={Sociedade Brasileira de Cardiologia - SBC},  author={Knobel, Elias},  year={1999},  month={Apr},  pages={414–422} }