[1] SWEDISH NATL RD ADM, BORLANGE, SWEDEN
[2] UNIV OSLO, ULLEVAAL HOSP, DEPT GERIATR MED, N-0407 OSLO, NORWAY
[3] UNIV GRONINGEN, DEPT NEUROPSYCHOL, GRONINGEN, NETHERLANDS
[4] UNIV GRONINGEN, TRAFF RES CTR, GRONINGEN, NETHERLANDS
[5] UNIV HELSINKI, DEPT PSYCHOL, FIN-00014 HELSINKI, FINLAND
[6] MEATH HOSP, AGE RELATED HLTH CARE, DUBLIN, IRELAND
[7] VANCOUVER HOSP & HLTH SCI CTR, DEPT PSYCHOL, VANCOUVER, BC V5Z 1M9, CANADA
[8] WESTERN KENTUCKY UNIV, DEPT PSYCHOL, BOWLING GREEN, KY 42101 USA
[9] JOHNS HOPKINS UNIV, DEPT PSYCHIAT & BEHAV SCI, BALTIMORE, MD USA
[10] UNIV WASHINGTON, MED CTR, PROGRAM AGING, ST LOUIS, MO USA
[11] CASE WESTERN RESERVE UNIV, UNIV HOSP CLEVELAND, ALZHEIMER CTR, CLEVELAND, OH 44106 USA
[12] CASE WESTERN RESERVE UNIV, DEPT NEUROL, CLEVELAND, OH 44106 USA
[13] UNIV S CAROLINA, BYRNES CTR GERIATR MED RES & EDUC, COLUMBIA, SC 29208 USA
[14] UNIV IOWA, DEPT NEUROL, IOWA CITY, IA 52242 USA
[15] UNIV MICHIGAN, TRANSPORTAT RES INST, ANN ARBOR, MI 48109 USA