Felix Osuna-Gutierrez, Paola Lizette Padilla-Mena, Andres Refugio Martinez-Uresti, Carlos M. Padilla-Valadez, and Javier Contreras-Cardenas. “Use of Legal and Illegal Substances and Their Impact on the Academic Performance of Medical University Students”. International Journal of Medical Science and Clinical Research Studies 2, no. 4 (April 18, 2022): 266–273. Accessed July 22, 2024. https://ijmscr.org/index.php/ijmscrs/article/view/150.