1. National Institute on Aging National Institute of Health LEPS/IRP/NIA/NIH Laboratory of Epidemiology and Population Sciences Baltimore Maryland USA
2. Department of Neurology Alzheimer center Amsterdam De Boelelaan Amsterdam The Netherlands
3. Department of Radiology University of Pennsylvania Health System Philadelphia Pennsylvania USA
4. Center for Biomedical Image Computing and Analytics Perelman School for Advanced Medicine Philadelphia Pennsylvania USA
5. Department of Radiology University of Texas Medical Branch Galveston Texas USA