Young patients with heart failure: clinical characteristics and outcomes. Data from the Swedish Heart Failure, National Patient, Population and Cause of Death Registers. - Basic, Carmen; Rosengren, Annika; Alehagen, Urban; Dahlström, Ulf; Edner, Magnus; Fu, Michael; Novak, Masuma; Zverkova Sandström, Tatiana; Schaufelberger, Maria (European Journal of Heart Failure, 2020)