1. Pediatric Pulmonology and Allergy Unit Hospital Universitari i Politècnic La Fe, Health Research Institute La Fe Valencia Spain
2. Allergy Service Hospital Universitario de La Plana Villarreal Spain
3. Pediatric Allergy Unit, Hospital Universitari Vall d'Hebron. Grup d'Investigació “Creixement i Desenvolupament” Institut de Recerca de l'Hospital Universitari Vall d'Hebron (VHIR) Barcelona Spain
4. Allergy and Clinical Immunology Department Hospital Materno‐Infantil Sant Joan de Déu Barcelona Spain
5. Pediatric Allergy and Pneumology Unit Hospital Universitari Dr. Peset Valencia Spain
6. Department of Pediatrics, Obstetrics and Gynecology University of Valencia Valencia Spain
7. Pediatric Pulmonology and Allergy Unit Hospital Universitari i Politècnic La Fe Valencia Spain
8. Pediatric Allergy and Pulmonology Unit Hospital Universitario Reina Sofía Córdoba Spain
9. Pediatric Pulmonology Unit Complejo Hospitalario de Navarra. IdiSNA Health Research Institute Pamplona Spain
10. Pediatric Allergy and Pulmonology Unit Hospital de Sabadell – Corporació Universitaria Parc Taulí Sabadell Spain
11. Pediatric Pulmonology and Allergy Unit Hospital Universitario Virgen del Rocío Sevilla Spain
12. Pediatric Pulmonology Unit Hospital Universitario Ramón y Cajal Madrid Spain
13. Pediatric Pulmonology and Allergy Unit Hospital de Sagunto Sagunto Spain
14. Pediatric Pulmonology and Allergy Unit Hospital del Mar Barcelona Spain
15. Pediatrics Service Hospital Universitario Príncipe de Asturias Alcalá de Henares Spain
16. Pediatric Pulmonology and Allergy Unit Hospital Universitario Clínico San Cecilio Granada Spain
17. Pediatrics Service Hospital Costa del Sol Marbella Spain
18. Pediatric Pulmonology Unit Hospital Universitario Virgen de las Nieves Granada Spain
19. Pediatric Pulmonology Unit Hospital Universitario Puerta de Hierro Majadahonda Spain
20. Pediatric Pulmonology and Allergy Unit Hospital Universitario Torrecárdenas Almería Spain
21. Pediatric Pulmonology Unit Hospital Universitario Infantil Niño Jesús Madrid Spain
22. Pediatric Pulmonology and Allergy Unit Hospital Universitario 12 de Octubre Madrid Spain
23. Pediatric Pulmonology Unit Hospital Universitario Virgen Macarena Sevilla Spain
24. Pediatrics Service Hospital Comarcal Virgen de la Merced Osuna Spain
25. Pediatrics Service Hospital Universitario de Jerez de la Frontera Jerez de la Frontera Spain
26. Pediatric Pulmonology Unit Hospital Universitario Nuestra Señora de Valme Sevilla Spain
27. Pediatric Pulmonology Unit Complejo Hospitalario de Jaén Jaén Spain
28. Pediatrics Service Hospital Universitario Fundación Jiménez Díaz Madrid Spain