@article{Tavolara_2000, title={Cartas al editor}, volume={20}, url={https://revistabiomedica.org/index.php/biomedica/article/view/1049}, DOI={10.7705/biomedica.v20i1.1049}, number={1}, journal={Biomédica}, author={Tavolara, Martha}, year={2000}, month={mar.}, pages={20–73} }