Lumbiganon, P., Urwijitaroon, Y., Kowsuwan, P., Lumbiganon, P., Panamonta, M. and Sookpranee, T. (1989) “Prevention of Vertical Transmission of Hepatitis B Virus A Randomized Clinical Trial and A Cost - Effectiveness Analysis”, Thai Journal of Obstetrics and Gynaecology. Bangkok, Thailand, 1(2), pp. 123–127. available at: https://he02.tci-thaijo.org/index.php/tjog/article/view/257907 (accessed: 29 September 2026).