False positivity of the surface antigen of the Hepatitis B virus (HBsAg) after vaccination.: Letter to the editor. Revista de la Sociedad Ecuatoriana de Nefrología, Diálisis y Trasplante, [S. l.], v. 12, n. 1, p. 9–12, 2024. DOI: 10.56867/75. Disponível em: https://rev-sen.ec/index.php/revista/article/view/75. Acesso em: 14 feb. 2025.