Left bundle branch block-induced dilated cardiomyopathy: Definitions, pathophysiology, and therapy Catarina Amaral Marques; Ana Laura Costa; Elisabete Martins;

Effect of vitamin D supplements on left ventricular ejection fraction in patients with heart failure: A systematic review and meta-analysis of randomized controlled trials Aryan Naghedi; Hasan Haghaninejad; Hamidreza Varastehravan; Arvin Naghedi; Nima Farshadi;

Long-term outcomes after radiofrequency catheter ablation of the atrioventricular node: The experience of a Portuguese tertiary center Ana Mosalina Manuel; João Almeida; Paulo Fonseca; Joel Monteiro; Cláudio Guerreiro; Ana Raquel Barbosa; Pedro Teixeira; José Ribeiro; Elisabeth Santos; Filipa Rosas; José Ribeiro; Adelaide Dias; Daniel Caeiro; Olga Sousa; Madalena Teixeira; Marco Oliveira; Helena Gonçalves; João Primo; Pedro Braga;