1. Department of Medical Epidemiology and Biostatistics; Karolinska Institutet; Stockholm Sweden
2. School of Aging Studies; University of South Florida; Tampa Florida USA
3. International Clinical Research Center; St. Anne's University Hospital; Brno Czech Republic
4. Relias Learning; Cary North Carolina USA
5. Department of Psychology; University of Southern California; Los Angeles California USA
6. Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden