@article{Guzmán Urrego_1992, title={Comentarios bibliográficos}, volume={12}, url={https://revistabiomedica.org/index.php/biomedica/article/view/2027}, DOI={10.7705/biomedica.v12i2.2027}, number={2}, journal={Biomédica}, author={Guzmán Urrego, Miguel}, year={1992}, month={jun.}, pages={90} }