[1] Linkoping Univ, Div Nursing Sci & Reprod Hlth, Dept Hlth Med & Caring Sci, Linkoping, Sweden
[2] Linkoping Univ, Dept Clin Chem, Linkoping, Sweden
[3] Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden
[4] Linkoping Univ, Dept Endocrinol, Linkoping, Sweden
[5] Linkoping Univ, Dept Hlth Med & Caring Sci, Linkoping, Sweden
[6] Orebro Univ, Fac Med Sci, Orebro, Sweden