1. Department of Medicine, University of Iceland, Reykjavik, Iceland
2. Children’s Hospital Iceland, Landspitali University Hospital, Reykjavik, Iceland
3. Department of Clinical Immunology, Landspitali University Hospital, Reykjavik, Iceland
4. VisMederi Srl, Siena, Italy
5. Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy