1. Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
2. Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.
3. Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
4. Department of Neurology, Tehran University of Medical Sciences, Tehran, Iran.
5. Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois.
6. School of Population and Public Health, University of British Columbia, Vancouver, Canada.