[1] Stockholms Sjukhem Fdn, SE-11235 Stockholm, Sweden
[2] Karolinska Inst, Dept Neurobiol, Care Sci & Soc, S-10401 Stockholm, Sweden
[3] Univ Queensland, Alzheimers Dis Res Unit, Sch Med, Brisbane, Qld 4072, Australia
[4] Univ Queensland, Dept Psychiat, Sch Med, Mental Hlth Ctr,Royal Brisbane & Womens Hosp, Herston, Qld, Australia
[5] Univ Orebro, Dept Hlth Sci, Orebro, Sweden
[6] Uppsala Univ, Dept Med Sci Occupat & Environm Med, Uppsala, Sweden