1. Halton Pediatric Allergy McMaster University Hamilton Ontario Canada
2. Children's Hospital Colorado University of Colorado School of Medicine Aurora Colorado USA
3. National Heart & Lung Institute Imperial College London London UK
4. Allergy & Immunology Medical City Children's Hospital Dallas Texas USA
5. Allergy and Clinical Immunology Dartmouth‐Hitchcock Medical Center and Geisel School of Medicine Lebanon New Hampshire USA
6. Dartmouth‐Hitchcock Medical Center Geisel School of Medicine Dartmouth New Hampshire USA
7. Adjunto Especialista en Alergología Hospital Infantil Universitario Niño Jesús Madrid Spain