1. Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet Stockholm Sweden
2. Division of Obstetrics and Gynecology at Södersjukhuset Stockholm Sweden
3. Institute for Environmental Medicine Stockholm Sweden
4. Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet Stockholm Sweden
5. Division of Obstetrics and Gynecology at Danderyd Hospital Stockholm Sweden