Louro, F., A. Gomes, J. Almeida, J. Abreu, A. Agapito, M. P. Magalhães, and A. Vital Morgado. “Fallot’s Tetralogy in an Adult”. Internal Medicine, vol. 6, no. 4, Dec. 1999, pp. 250-3, https://revista.spmi.pt/index.php/rpmi/article/view/2085.