Castro-Tigre E, Castillo-Galvis S, Macías-Sánchez M. Action of protection as an effective mechanism for access to medicines for cancer patients. cm [Internet]. 1Dec.2022 [cited 19May2024];8(3):2247-62. Available from: https://www.cienciamatriarevista.org.ve/index.php/cm/article/view/965