@article{al-dhuayan_2022,  title={Biomedical role of L-carnitine in several organ systems, cellular tissues, and COVID-19},  volume={82},  ISSN={1519-6984},  url={https://doi.org/10.1590/1519-6984.267633},  DOI={10.1590/1519-6984.267633},  journal={Brazilian Journal of Biology},  publisher={Instituto Internacional de Ecologia},  author={Al-Dhuayan, I. S.},  year={2022},  pages={e267633} }