1. Department of Public Health Henri Mondor Hospital Université Paris Est Créteil EA 7376 – CEpiA Créteil France
2. Department of Rheumatology Saint Joseph Hospital Paris France
3. Department of Dermatology Saint Joseph Hospital Paris France
4. Department of Dermatology Hospital Saint‐Louis University Paris 7 Inserm U976 Paris France
5. Department of Rheumatology Purpan Hospital Toulouse France
6. Department of Rheumatology Le Mans Hospital Le Mans France
7. MSD France Courbevoie France
8. Department of Rheumatology Sud Francilien Hospital Corbeil Essonnes France
9. Department of Dermatology Edouard Herriot Hospital University Claude Bernard Lyon‐1 University of Lyon Lyon France
10. Department of Rheumatology Lariboisière Hospital University Paris Diderot Sorbonne Paris Cité Inserm UMR 1132 Bioscar Paris France
11. Department of Dermatology INSERM U1065 équipe 12, C3M Nice France
12. Department of Dermatology Aix‐Marseille University UMR 911 INSERM CRO2 Timone Hospital Marseille France
13. Department of Rheumatology Henri Mondor Hospital APHP Université Paris Est Créteil EA 7379 – EpidermE Créteil France