1. Section on Quantitative Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda Maryland USA
2. Center for Neuroscience and Regenerative Medicine Uniformed Services of Health Sciences Bethesda Maryland USA
3. Multiscale Imaging and Integrative Biophysics Unit, National Institute on Aging National Institutes of Health Bethesda Maryland USA
4. Spin Nord AB Linköping Sweden
5. Department of Biomedical Engineering Linköping University Linköping Sweden
6. Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge Tennessee USA