[1] Univ Hosp Heidelberg, Dept Internal Med Cardiol Angiol & Pneumol 3, D-69120 Heidelberg, Baden Wurttembe, Germany
[2] Heidelberg Univ, DZHK German Ctr Cardiovasc Res, Partner Site Heidelberg Mannheim, Heidelberg, Germany
[3] Univ Sheffield, Infect Immun & Cardiovasc Dis, Sheffield, S Yorkshire, England
[4] Sheffield Teaching Hosp, Cardiothorac Radiol, Sheffield, S Yorkshire, England