1. King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom
2. Department of Cardiology and Pneumology, University Medical Center Goettingen, Goettingen, Germany
3. Institute for Clinical Chemistry, University Medical Center Goettingen, Goettingen, Germany
4. German Centre for Cardiovascular Research (DZHK), Partner Site Goettingen, Goettingen, Germany
5. Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, Birmingham, United Kingdom