1. Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden;
2. Department of Forest Mycology and Plant Pathology, Science for Life Laboratories, Swedish University of Agricultural Sciences, Uppsala, Sweden;
3. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden;
4. Unit of Paediatric Allergy and Pulmonology at Astrid Lindgren Children’s Hospital, Karolinska University Hospital, Stockholm, Sweden;
5. Department of Clinical Sciences, Division of Obstetrics and Gynaecology, Danderyd Hospital, Karolinska Institute, Stockholm, Sweden;
6. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden;
7. Department of Medical Sciences, Clinical Chemistry, Uppsala University, Uppsala, Sweden