1. Institute for Occupational Safety and Health of the German Social Accident Insurance Sankt Augustin Germany
2. Department of Dermatology, Environmental Medicine and Health Theory University of Osnabrück Osnabrück Germany
3. 2nd Department of Dermatology Colentina Clinical Hospital “Carol Davila” University of Medicine and Pharmacy Bucharest Romania
4. Pediatric Dermatology Department Colentina Clinical Hospital “Carol Davila” University of Medicine and Pharmacy Bucharest Romania
5. Occupational Medicine Department of Biomedical, Metabolic and Neural Sciences University of Modena & Reggio Emilia Modena Italy
6. Department of Prevention, Health and Safety Unit AUSL South‐East Tuscany Grosseto Italy
7. Department of Medical Biotechnology Unit of Occupational Medicine Azienda Ospedaliera Universitaria Senese University of Siena Siena Italy
8. Occupational Health and Environmental Medicine Unit Institute for Medical Research and Occupational Health Zagreb Croatia
9. Department of Occupational and Social Medicine Copenhagen University Hospital Holbaek Denmark
10. Department of Occupational Medicine University of Medicine, Pharmacy, Science & Technology of Targu‐Mures Targu Mures Romania