[1] Linkoping Univ, Fac Hlth Sci, Dept Social & Welf Studies, S-58183 Linkoping, Sweden
[2] Karlstad Univ, Dept Hlth Sci, Fac Hlth Sci & Technol, Nursing, S-65637 Karlstad, Sweden
[3] Linkoping Univ, Dept Geriatr Med, S-58183 Linkoping, Sweden
[4] Linkoping Univ, Dept Social & Welf Studies, S-58183 Linkoping, Sweden
[5] Karolinska Inst, Dept Neurobiol Care Sci & Soc NVS, Div Clin Geriatr, S-10435 Stockholm, Sweden
[6] Ersta Skondal Univ Coll, S-10061 Stockholm, Sweden