Pereira, A., and J. Neves. “Pyogenic Liver Abscesses – A Clinical Case Presentation and a Retrospective Study of the Santa Maria Infectious Disease Department from 1999-2003”. Internal Medicine, vol. 11, no. 3, Sept. 2004, pp. 139-42, https://revista.spmi.pt/index.php/rpmi/article/view/1756.