1. Institute for Medical Research and Occupational Health Zagreb Croatia
2. Department of Medical Informatics, Biometry and Epidemiology Friedrich‐Alexander Universität Erlangen/Nürnberg, Erlangen Erlangen Germany
3. National Allergy Research Centre, Department of Skin and Allergy University of Copenhagen, Gentofte Hospital Copenhagen Denmark
4. Department of Dermatology, Environmental Medicine and Health Theory Osnabrück University Osnabrück Germany
5. Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University Osnabrück Germany
6. Department of Public and Occupational Health, Coronel Institute of Occupational Health, Amsterdam Public Health Research Institute Amsterdam UMC, University of Amsterdam Amsterdam The Netherlands