1. Department of Mechanical Engineering Environmental Informatics Research Group Aristotle University Thessaloniki Greece
2. Aerobiology and Pollen Information Research Unit Department of Oto‐Rhino‐Laryngology Medical University of Vienna Vienna Austria
3. Foundation German Pollen Information Service Berlin Germany
4. Department of Otorhinolaryngology Head and Neck Surgery Universitätsmedizin Mannheim Medical Faculty Mannheim Heidelberg University Mannheim Germany
5. Center for Rhinology and Allergology Wiesbaden Germany