1. Department of Dermatology, Saint Eloi Hospital; Montpellier University; Montpellier France
2. Department of Occupational and Environmental Dermatology; Lund University, Skåne University Hospital; Malmö Sweden
3. Allergological office; Avignon France
4. Department of Dermatology; University Hospital Antwerp (UZA) and University of Antwerp (UA); Antwerp Belgium