Comparison of CD4 lymphocyte subset count between smokers and non-smokers. International Journal of Biomedical and Advance Research, [S. l.], v. 5, n. 1, p. 41–43, 2014. DOI: 10.7439/ijbar.v5i1.634. Disponível em: https://ssjournals.co.in/index.php/ijbar/article/view/444. Acesso em: 12 mar. 2026.