ESTRADA ÁLVAREZ, Luis Fernando. Intrafamilial transmission of hepatitis B and associated factors in children aged 5 to 14 years. Medicina UPB, [S. l.], v. 15, n. 2, p. 149–160, 1996. Disponível em: https://revistas.upb.edu.co/index.php/medicina/article/view/4422. Acesso em: 13 aug. 2026.