1 Urticaria Centre of Excellence and Reference (UCARE), Department of Dermatology/Allergology, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands. Electronic address: [email protected].
2 Urticaria Centre of Excellence and Reference (UCARE), Department of Dermatology/Allergology, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands.
3 Department of Dermatology, Radboud University Medical Centre, Nijmegen, the Netherlands.