A Comparative Study of Tumor Regression Efficiency under the Impact of Cytokines Interleukin-21 and Interleukin-2 for Cancer Treatment Cultured with Chemo - Immunotherapy: A Mathematical Modeling Approach. Punjab University Journal of Mathematics, [S. l.], v. 50, n. 2, p. 66–81, 2018. Disponível em: https://pujm.pu.edu.pk/index.php/pujm/article/view/130. Acesso em: 29 jun. 2025.