@article{calderon_moreira_barreto_tincani_2020,  title={Model of single-sized endotracheal tube for adults},  volume={18},  ISSN={1679-4508},  url={https://doi.org/10.31744/einstein_journal/2020AO4805},  DOI={10.31744/einstein_journal/2020AO4805},  journal={einstein (São Paulo)},  publisher={Instituto Israelita de Ensino e Pesquisa Albert Einstein},  author={Calderon, Luiz Guilherme and Moreira, Marcos Mello and Barreto, Gilson and Tincani, Alfio José},  year={2020},  pages={eAO4805} }