1. Department of Dental Medicine, Section for Orofacial Pain and Jaw Function and the Scandinavian Center for Orofacial Neurosciences (SCON), Karolinska Institutet, Huddinge, Sweden;
2. Division of Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden;
3. Department of Women’s and Children’s Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Stockholm, Sweden