1. Department of Dermatology and Allergy Technical University of Munich School of Medicine Munich Germany
2. Institute for Medical Information Processing, Biometry and Epidemiology (IBE) Ludwig‐Maximilians University Munich Munich Germany
3. Dr. von Hauner Children's Hospital, Member of the German Center of Lung Research (DZL) Ludwig‐Maximilians University Munich Munich Germany
4. Medical Faculty Mannheim Mannheim Institute of Public Health, Social and Preventive Medicine (MIPH)Heidelberg University Mannheim Germany