1. Department of Diagnostic Radiology The University of Hong Kong Hong Kong
2. Alzheimer's Disease Research Network The University of Hong Kong Hong Kong
3. State Key Laboratory of Brain and Cognitive Sciences The University of Hong Kong Hong Kong
4. Department of Educational Psychology Chinese University of Hong Kong Hong Kong
5. Department of Social Work and Administration The University of Hong Kong Hong Kong
6. School of Biomedical Sciences The University of Hong Kong Hong Kong
7. Alzheimer Disease Research Centre University of Pittsburgh Pittsburgh Pennsylvania USA