[1] Karolinska Inst, Div Int Hlth, IHCAR, Dept Publ Hlth Sci, SE-17177 Stockholm, Sweden
[2] Uppsala Univ, Dept Publ Hlth & Caring Sci, Uppsala, Sweden
[3] Cty Hosp, Dept Communicable Dis Control, Halmstad, Sweden
[4] Nord Sch Publ Hlth, Gothenburg, Sweden
[5] Apoteket AB, Gothenburg, Sweden