1. Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
2. Department of Dermatology University Hospital Basel Basel Switzerland
3. Department of Dermatology AP‐HP, Henri Mondor Hospital Paris France
4. Department of Biomedicine University Hospital and University of Basel Basel Switzerland
5. Department of Dermatology and Allergy Hannover Medical School Hannover Germany
6. Faculty of Medicine University Zurich Zurich Switzerland
7. Department of Dermatology University Hospital Zurich Zurich Switzerland
8. ToxiTEN Group, ERN‐Skin
9. Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL Paris France
10. Université Paris Est, EpiDermE Paris France
11. Platform of Biological Resources Henri Mondor Hospital Paris France
12. Intensive Care Unit AP‐HP, Henri Mondor Hospital Paris France
13. Swiss Institute of Allergy and Asthma Research (SIAF), University Zurich Davos Switzerland
14. Department of Dermatology and Allergy University Hospital, LMU Munich Munich Germany
15. Dr. Philip Frost Department of Dermatology and Cutaneous Surgery University of Miami, Miller School of Medicine Miami USA