[1]
L. F. Estrada Álvarez, “Intrafamilial transmission of hepatitis B and associated factors in children aged 5 to 14 years”, Med UPB, vol. 15, no. 2, pp. 149–160, Dec. 1996, Accessed: Aug. 10, 2026. [Online]. Available: https://revistas.upb.edu.co/index.php/medicina/article/view/4422