Quadricuspid aortic valve with a hidden left ostium: Case report and literature review Filipe R. Soares; Carlos Branco; Gonçalo F. Coutinho; David Prieto; Manuel J. Antunes;

Inappropriate tachycardia at rest as a consequence of atrial preference pacing algorithm Baris Akdemir;

Temporal trends of lipid control in very high cardiovascular risk patients Paulo Maia Araújo; Alzira Nunes; Sofia Torres; Carlos Xavier Resende; Sérgio Machado Leite; Joana Duarte Rodrigues; Sandra Amorim; Elisabete Martins; Manuel Campelo; Maria Júlia Maciel;