1. Physikalisch‐Technische Bundesanstalt (PTB) Braunschweig and Berlin Germany
2. Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between the Charité Medical Faculty and the Max‐Delbrueck Center for Molecular Medicine
3. Department of Radiology, Feinberg School of Medicine Northwestern University Chicago Illinois
4. Department of Biomedical Engineering, McCormick School of Engineering Northwestern University Chicago Illinois
5. University of Minnesota, Center for Magnetic Resonance Research (CMRR) Minneapolis Minnesota