@article{marini_2019,  title={Unproductive Participation and Protection Against Germs: Technical-Ritualistic Practices in Heart Surgery},  volume={16},  ISSN={1809-4341},  url={https://doi.org/10.1590/1809-43412019v16d604},  DOI={10.1590/1809-43412019v16d604},  journal={Vibrant: Virtual Brazilian Anthropology},  publisher={Associação Brasileira de Antropologia (ABA)},  author={Marini, Marisol},  year={2019},  pages={e16604} }