1. Department of Radiology; Division of Radiological Physics, University of Basel Hospital; Basel Switzerland
2. MR Center of Excellence, Department of Radiology; Medical University Vienna; Vienna Austria
3. High-Field Magnetic Resonance Center; Max-Planck Institute for Biological Cybernetics; Tübingen Germany
4. Department of Biomedical Magnetic Resonance; University Hospital Tübingen; Tübingen Germany