Beware of regression of electrocardiographic abnormalities on detraining ¿ It may not always mean `athlete's heart¿ José Pedro Marques; António Freitas; João Abecasis;

Surgical revascularization of chronic coronary total occlusions ¿ a systematic review and meta-analysis Ana Luísa Silva; Gonçalo Ferraz Costa; José Luís Martins; Luís Leite; Lino Gonçalves;

Establishing a left bundle branch area pacing program: results from a high-volume pacing center João Ferreira; Diogo Fernandes; Patrícia Marques-Alves; Carolina Saleiro; Luís Elvas; Lino Gonçalves;