Branco, V., M. J. Salvador, M. R. Silva, P. Martins, A. Carvalho, E. Almiro, and A. Porto. “Hodgkin’s Disease Presenting With Pyrexia of Unknown Origin”. Internal Medicine, vol. 5, no. 4, Dec. 1998, pp. 251-6, https://revista.spmi.pt/index.php/rpmi/article/view/2160.