Worrisome trends of ST-elevation myocardial infarction during the Covid-19 pandemic: Data from Portuguese centers Luís Oliveira; Rui Campante Teles; Carina Machado; Sérgio Madeira; Nélson Vale; Carla Almeida; João Brito; Sílvio Leal; Luís Raposo; Pedro de Araújo Gonçalves; António Miguel Pacheco; Henrique Mesquita Gabriel; Manuel Almeida; Dinis Martins; Miguel Mendes;

Chest pain in a patient with pulmonary arterial hypertension Diogo Ribeiras Cabral; Tatiana Guimarães; Ana G. Almeida; Paula Campos; Susana R. Martins; Pedro Canas da Silva; Fausto J. Pinto; Rui Plácido;

Commissural malalignment on echocardiography as a predictor of coronary artery abnormalities in newborns with transposition of great arteries Erkut Öztürk; Selman Gokalp; ¿brahim Cansaran Tan¿d¿r;