Video-pericardioscopy: how to improve the value of etiologic diagnosis of pericardial effusion - Pêgo-Fernandes, P. M.; Fernandes, F.; Ianni, B. M.; Rohr, S. S.; Bernadelli, I. M.; Jatene, Fabio Biscegli; Oliveira, Sergio Almeida (World Congress, 2001)