1. Department of Paediatric Infectious Diseases and Immunology; Hospital Universitario Virgen del Rocío (HUVR); Sevilla Spain
2. Unit of Pediatric Rheumatology, Department of Pediatrics; Hospital Sant Joan de Déu, Esplugues de Llobregat; Barcelona Spain
3. Department of Paediatric Pneumology; HUVR; Sevilla Spain
4. Department of Paediatrics; Hospital Sagrado Corazón; Sevilla Spain
5. Department of Paediatric Gastroenterology; HUVR; Sevilla Spain
6. Department of Paediatric Dermatology; HUVR; Sevilla Spain