[1] Herzzentrum Kantonsspital, Luzern, Switzerland
[2] Univ Svizzera Italiana, Fac Biomed Sci, Lugano, Switzerland
[3] San Giovanni Hosp, Dep Med Interna, Cardiovasc Res Unit, Bellinzona, Switzerland
[4] Univ Milano Bicocca, Ist Auxol Italiano, Cardiol Unit, IRCCS, Milan, Italy
[5] Univ Milano Bicocca, Dept Med & Surg, Milan, Italy
[6] Univ Hosp Zurich, Dept Internal Med, Zurich, Switzerland
[7] Kantonsspital Munsterlingen, Med Klin, Munsterlingen, Switzerland