1. Pediatric allergy unit, Department of Women, Children and Adolescents, University Hospitals of Geneva, Geneva, Switzerland
2. Pediatrics, Centro Pediatrico del Mendrisiotto, Mendrisio, Switzerland
3. Faculty of Biomedical Science, Università della Svizzera Italiana (USI), Lugano, Switzerland
4. Department of Women and Children’s Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK
5. Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King’s College London, London, UK
6. Children’s Allergy Service, Evelina London Children’s Hospital, Guy’s and St Thomas’ Hospital, London, UK