1. Department of Dermatology, Alicante University General Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Spain
2. Department of Paediatrics, Alicante University General Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Spain
3. Department of Dermatology, Hospital Marina Alta, Spain
4. Epidemiology Unit, Elche University General Hospital, Spain
5. Epidemiology Unit, Alicante University General Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Spain