Pulmonary thromboendarterectomy in Portugal: Initial experience José Fragata; Helena Telles;

Chronotropism during exercise. Methodological and conceptual inconsistencies Miguel Mendes;

2020 Top 10 Original Articles in the Arquivos Brasileiros de Cardiologia and the Revista Portuguesa de Cardiologia Ricardo Fontes-Carvalho; Gláucia Maria Moraes de Oliveira; Nuno Cardim; Carlos Eduardo Rochitte;