[1] Oslo Univ Hosp, Dept Cardiol, Oslo, Norway
[2] Sahlgrens Univ Hosp, Dept Cardiol, Gothenburg, Sweden
[3] Rigshosp, Dept Cardiol, DK-2100 Copenhagen, Denmark
[4] Aarhus Univ Hosp, Dept Cardiol, Skejby, Denmark
[5] Skane Univ Hosp, Dept Cardiol, Clin Heart Failure & Valvular Dis, Lund, Sweden
[6] Lund Univ, Lund, Sweden
[7] Cty Council Ostergotland, Dept Cardiol, Heart & Med Ctr, Linkoping, Sweden
[8] Linkoping Univ, Linkoping, Sweden
[9] Novartis Norge AS, Oslo, Norway
[10] Sahlgrens Univ Hosp, Transplant Inst, Gothenburg, Sweden