@article{stolf_2006,  title={Norman Shumway},  volume={21},  ISSN={0102-7638},  url={https://doi.org/10.1590/S0102-76382006000100021},  DOI={10.1590/S0102-76382006000100021},  number={1},  journal={Brazilian Journal of Cardiovascular Surgery},  publisher={Sociedade Brasileira de Cirurgia Cardiovascular},  author={Stolf, Noedir},  year={2006},  month={Jan},  pages={106–107} }