[1] Linkoping Univ, Dept Med & Hlth Sci, Linkoping, Sweden
[2] Dept Clin Physiol, Linkoping, Sweden
[3] Jonkoping Univ, Sch Hlth & Welf, Dept Nat Sci & Biomed, Jonkoping, Sweden
[4] Lund Univ, Dept Clin Sci Malmo, Clin Res Ctr, Malmo, Sweden
[5] Karolinska Inst, Dept Obstet & Gynecol, Stockholm, Sweden