1. 1X4 Pharmaceuticals (Austria) GmbH, Vienna, Austria
2. 2Formerly X4 Pharmaceuticals (Austria) GmbH, Vienna, Austria
3. 3Research Department, Belarusian Research Center for Pediatric Oncology, Hematology, and Immunology, Minsk, Belarus
4. 4Department of Rheumatology and Clinical Immunology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
5. 5Center for Chronic Immunodeficiency, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
6. 6X4 Pharmaceuticals, Boston, MA
7. 7Division of Allergy, Immunology, Department of Pediatrics, Duke University School of Medicine, Durham, NC
8. 8Department of Rheumatology and Clinical Immunology, Hannover Medical School, Hannover, Germany
9. 9RESIST-Cluster of Excellence 2155, Hannover Medical School, Hannover, Germany
10. 10Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
11. 11Division of Allergy and Immunology, Department of Medicine, Johns Hopkins All Children's Hospital, St Petersburg, FL
12. 12Division of Allergy & Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL
13. 13Division of Allergy and Immunology, Massachusetts General Hospital for Children, Boston, MA
14. 14Division of Hematopathology, Department of Pathology, Duke University, Durham, NC
15. 15Department of Pathology, Boston Children’s Hospital, Boston, MA
16. 16Division of Rheumatology and Immunology, Department of Medicine, Duke University, Durham, NC
17. 17Durham Veterans Affairs Medical Center, Durham, NC