1. Department of Dermatology; Leiden University Medical Center; Leiden Netherlands
2. Veritas Health Sciences Consultancy Ltd; London UK
3. Musculoskeletal Statistics Unit, The Parker Institute; Bispebjerg and Frederiksberg Hospital; Copenhagen Denmark
4. Dutch Association for People with Atopic Dermatitis (VMCE: Vereniging voor Mensen met Constitutioneel Eczeem); Nijkerk Netherlands