1. Department of Immunology - Allergology - Rheumatology; Faculty of Medicine and Health Science; University of Antwerp and Antwerp University Hospital; Wilrijk Belgium
2. Immunology Department; Centre de Diagnòstic Biomèdic (CDB); Hospital Clínic; Universitat de Barcelona and Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
3. Department of Pediatrics; Faculty of Medicine and Health Science; University of Antwerp and Antwerp University Hospital; Wilrijk Belgium