1 Department of Geriatrics, Turku City Hospital and University of Turku, Turku FIN-20700, Finland.
2 Department of Pharmacology, Drug Development and Therapeutics, University of Turku, Finland.
3 Statcon Ltd, Salo, Finland.
4 Department of Nursing Science, Turku City Hospital and University of Turku, Turku, Finland.
5 Department of Geriatrics, Turku City Hospital and University of Turku, Turku FIN-20700, Finland Division of Clinical Geriatrics, Karolinska Institutet, Karolinska University Hospital, Huddinge, Sweden.