1. Institute for Social Research, University of MichiganAnn ArborMIUSA
2. Department of EpidemiologyCollege of Public Health, University of IowaIowa CityIAUSA
3. Department of Internal MedicineCollege of Medicine, University of IowaIowa CityIAUSA
4. Division of General Medicine, Department of MedicineSchool of Medicine, University of MichiganAnn ArborMIUSA
5. Veterans Affairs Center for Practice Management and Outcomes ResearchAnn ArborMIUSA
6. Department of Psychiatry and Behavioral SciencesDuke University Medical CenterDurhamNCUSA
7. Rush Alzheimer's Disease Center, Rush University Medical CenterChicagoILUSA
8. Department of Neurological SciencesRush University Medical CenterChicagoILUSA
9. Department of Behavioral SciencesRush University Medical CenterChicagoILUSA
10. Wien Center for Alzheimer's Disease and Memory Disorders, Mount Sinai Medical CenterMiamiFLUSA
11. Department of MedicineMiller School of Medicine, University of MiamiMiamiFLUSA
12. Department of NeurologyMiller School of Medicine, University of MiamiMiamiFLUSA
13. Department of Psychiatry and Behavioral SciencesMiller School of Medicine, University of MiamiMiamiFLUSA
14. Department of PsychiatrySchool of Medicine, University of PittsburghPittsburghPAUSA
15. Department of EpidemiologyGraduate School of Public Health, University of PittsburghPittsburghPAUSA
16. Department of PsychiatryMount Sinai Medical CenterNew YorkNYUSA
17. Alzheimer's Disease Center, Mount Sinai Medical CenterNew YorkNYUSA
18. Bronx Veterans Administration HospitalBronxNYUSA