[1] Univ Hosp Schleswig Holstein, Dept Internal Med 3, Cardiol & Angiol, Campus Kiel, Kiel, Germany
[2] Univ Hosp Schleswig Holstein, Kiel, Germany
[3] Univ Kiel, Kiel, Germany
[4] Univ Med Ctr Schleswig Holstein, Dept Cardiac & Vasc Surg, Campus Kiel, Kiel, Germany
[5] Univ Med Ctr Kiel, Kiel, Germany
[6] IPPMed, Cloppenburg, Germany
[7] Univ Hosp Heidelberg, Cardiol, Heidelberg, Germany
[8] Univ Clin Ctr Schleswig Holstein, Kiel, Germany