Department of Medicine, University of Mississippi Medical Centre, Jackson, MS, USA. Department of Medicine, DOW University of Health Sciences, Karachi, Pakistan. Department of Cardiology and Pneumology, University of Göttingen Medical Center, Göttingen, Germany. German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany. BCRT-Berlin Institute of Health Center for Regenerative Therapies, Charite, Universitätsmedizin Berlin, Berlin, Germany. Department of Cardiology (Virchow Klinikum), Charité- Universitätsmedizin Berlin, German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany. Monash University, Australia. University of Warwick, Coventry, UK.