1. Department of Radiology, C. J. Gorter Center for High Field MRI; Leiden University Medical Centre; Leiden The Netherlands
2. Departments of Radiology and Radiological Sciences, Biomedical Engineering, and Molecular Physiology and Biophysics; Vanderbilt University; Nashville TN USA
3. Department of Radiology; Utrecht Medical Center; Utrecht The Netherlands
4. Philips Healthcare; Benelux The Netherlands
5. Department of Neurology; Leiden University Medical Centre; Leiden The Netherlands