1. aDepartment of Cardiology, Klinik am See, Rüdersdorf, Germany
2. bCardiological Outpatient Clinics Am Park Sanssouci, Potsdam, Germany
3. cMedical Affairs, Merck Sharp & Dohme GMBH, Haar, Germany
4. dDepartment of Medicine, Division of Prevention, Rehabilitation and Sports Medicine, University Hospital, Technical University Munich, Germany
5. eInstitute for Clinical Pharmacology, Technical University, Dresden, Germany
6. fStiftung Institut für Herzinfarktforschung, Ludwigshafen, Germany
7. gCenter of Rehabilitation Research, University of Potsdam, Germany