1. Department of Clinical Immunology and Transfusion Medicine, and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
2. Department of Obstetrics and Gynaecology, and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
3. Research and Development Unit in Region Östergötland and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden