Tampere University, Faculty of Social Sciences (Health Sciences), P.O. Box 100, FI-33014, Finland.
Gerontology Research Center, Tampere University and University of Jyväskylä, Finland.
University of Jyväskylä, Faculty of Sport and Health Sciences, P.O. Box 35, FI-40014, Finland.
Karolinska Institutet, Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Stockholm, Karolinska Vägen 37 A, QA32, SE-171 64, Solna, Sweden.