1. Department of Clinical Sciences, Danderyd Hospital, Karolinska Institute, Stockholm, Sweden
2. Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
3. Department of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
4. Department of Research and Development, Region Halland, Halmstad, Sweden
5. Unit of Biostatistics, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
6. Department of Clinical Research and Education, Karolinska Institute, Stockholm, Sweden