[1] Karolinska Inst, Dept Womens & Childrens Hlth, Stockholm, Sweden
[2] Uppsala Univ, Dept Publ Hlth & Caring Sci, Uppsala, Sweden
[3] Uppsala Univ, Dept Womens & Childrens Hlth, Uppsala, Sweden
[4] Karolinska Inst, Dept Learning Informat Management & Eth, Stockholm, Sweden
[5] City Univ London, Sch Hlth Sci, London, England
[6] Karolinska Univ Hosp, Dept Infect Dis, Huddinge, Sweden