1 Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Schöpfstr, 41, A-6020, Innsbruck, Austria. Electronic address: Florian.Kronenberg@i-med.ac.at.
2 Vascular Medicine Program, Sulpizio Cardiovascular Center, Division of Cardiovascular Diseases, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, USA. Electronic address: stsimikas@ucsd.edu.