Facemasks during aerobic exercise: Implications for cardiac rehabilitation programs during the Covid-19 pandemic Tiago Pimenta; Helena Tavares; João Ramos; Mafalda Oliveira; David Reis; Hugo Amorim; Afonso Rocha;

Left ventricular pacing with a temporary pacemaker: Case report Marta Tavares-Silva; Carla de Sousa; Vítor Araújo; Luís Adão; Gonçalo Pestana; Roberto Pinto; Filipe Macedo; Maria Júlia Maciel;

Impella support for cardiogenic shock and high-risk percutaneous coronary intervention: A single-center experience Mariana Brandão; Daniel Caeiro; Gustavo Pires-Morais; João Gonçalves Almeida; Pedro Gonçalves Teixeira; Marisa Passos Silva; Marta Ponte; Adelaide Dias; Marco Oliveira; Alberto Rodrigues; Pedro Braga;