[1] Uppsala Univ, Dept Womens & Childrens Hlth, Uppsala, Sweden
[2] Orebro Univ, Fac Med & Hlth, Clin Res Ctr, Orebro, Sweden
[3] Uppsala Univ, Ctr Clin Res Dalarna, Falun, Sweden
[4] Dalarna Univ, Sch Educ Hlth & Social Studies, Falun, Sweden
[5] Uppsala Univ, Dept Publ Hlth & Caring Sci, Family Med & Prevent Med, Uppsala, Sweden