A study on prevalence of hepatitis-B: Detecting hepatitis-B surface antigen using HEPA card and confirmation by ELISA. International Journal of Biomedical and Advance Research, [S. l.], v. 9, n. 10, p. 353–357, 2018. DOI: 10.7439/ijbar.v9i10.4885. Disponível em: https://ssjournals.co.in/index.php/ijbar/article/view/4885. Acesso em: 12 mar. 2026.