Manso, N., C. Oliveira, P. Borrega, F. Fernandes, T. Saldanha, C. Martins, and J. Sanches. “Computerized Tomography Guided Percutaneous Procedures”. Internal Medicine, vol. 4, no. 4, Dec. 1997, pp. 266-73, https://revista.spmi.pt/index.php/rpmi/article/view/2252.