1. Infectious and Dermatology Unit, Centre Hospitalier Intercommunal (CHI) Fréjus Saint Raphaël, Fréjus, France
2. Department of Statistics, CHI Fréjus Saint Raphaël, Fréjus, France
3. Pediatric Dermatology Unit, Centre Hospitalier Universitaire Bordeaux, Université Victor Ségalen, Bordeaux, France
4. Department of Dermatology, Hôpital Victor Dupouy, Argenteuil, France
5. Department of Dermatology, Hôpital Necker–Enfants Malades, Assistance Publique–Hôpitaux de Paris, Université Paris Descartes, Paris, France
6. Pediatric Dermatology Unit, Claude Bernard–Lyon 1 University and Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Lyon, France