1 Department of Internal Medicine I, Division of Cardiology, Pneumology, Angiology and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University Jena, Erlanger Allee 101, 07747, Jena, Germany. michel.noutsias@uni-jena.de.
2 Onassis Cardiac Surgery Center, 50 Esperou Street, 175-61, Palaeo Faliro, Athens, Greece.
3 Department of Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
4 Deutsches Zentrum für Herz Kreislaufforschung (DZHK) - Standort Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.
5 Berlin Center for Regenerative Therapies (BCRT), Campus Virchow Klinikum (CVK), Berlin, Germany.