1 Department of Dermatology and Allergology, National Expertise Center for Atopic Dermatitis, University Medical Center Utrecht, Utrecht, The Netherlands.
2 Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.
3 Department of Pulmonology, University Medical Center Utrecht, Utrecht, The Netherlands.
4 Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands.
5 Department of Dermatology, Reinier de Graaf Gasthuis, Delft, The Netherlands.
6 Department of Dermatology, Meander Medisch Centrum, Amersfoort, The Netherlands.
7 Department of Dermatology, University Medical Center Maastricht, Maastricht, The Netherlands.
8 Department of Dermatology, University Medical Center Groningen, Groningen, The Netherlands.