[1] Malardalen Univ, Sch Hlth Care & Social Welf, POB 325, SE-63105 Eskilstuna, Sweden
[2] Karolinska Inst, Med Management Ctr, Dept Learning Informat Management & Eth, Stockholm, Sweden
[3] Karolinska Inst, Aging Res Ctr, Stockholm, Sweden
[4] Stockholm Univ, S-10691 Stockholm, Sweden
[5] City Univ London, Sch Hlth Sci, London, England