[1] Berner Fachhsch, Fachbereich Ernahrung & Diatet, Bern, Switzerland
[2] Berner Fachhsch, Dept Gesundheit, Bern, Switzerland
[3] Univ Kinderspital Zurich, Abt Allergol, Zurich, Switzerland
[4] Kinderspital Luzern, Abt Padiatr Allergol, Abt Kinderheilkunde, Luzern, Switzerland
[5] Christine Kuehne Zentrum Allergieforsch & Ausbildu, Davos, Switzerland
[6] Univ Bern, Abt Pneumol & Allergol, Abt Padiatr, Inselspital, Bern, Switzerland
[7] Univ Kinderspital Basel, Allergieabt, Basel, Switzerland
[8] Imperial Coll, Royal Brompton & Harefield NHS Fdn Trust, Dept Allergy & Clin Immunol, London, England
[9] Univ Plymouth, Sch Hlth Profess, Plymouth, Devon, England