Hyperkalemia and management of renin-angiotensin-aldosterone system inhibitors in chronic heart failure with reduced ejection fraction: A systematic review Cândida Fonseca; Dulce Brito; Patrícia Branco; João Miguel Frazão; José Silva-Cardoso; Paulo Bettencourt;

The historical evolution of knowledge of the involvement of neurohormonal systems in the pathophysiology and treatment of heart failure Jorge Polónia; Francisco Rocha Gonçalves;

Heart failure units: State of the art in disease management Ana Teresa Timóteo; Tiago Pereira Silva; Rita Ilhão Moreira; António Gonçalves; Rui Soares; Rui Cruz Ferreira;