Baptista, A., S. Leão, P. Magalhães, P. Mateus, and I. Moreira. “Etiology of Moderate-to-Large Pericardial Effusion – A Step-by-Step Approach”. Internal Medicine, vol. 22, no. 2, June 2015, pp. 67-70, doi:10.24950/rspmi.892.