1. Department of Cardiology, University Medical Center Mainz, Johannes Gutenberg University, Langenbeckstrasse 1, 55131 Mainz, Germany
2. University/BHF Centre for Cardiovascular Sciences, University of Edinburgh, UK
3. Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
4. Department of Natural Science and Environment, Roskilde University, Roskilde, Denmark
5. Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
6. Division of Cardiovascular Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Case Western Reserve School of Medicine, 11100 Euclid Avenue, Cleveland, OH 44106, USA