aDivision of Allergy, Department of Pulmonology, Allergy and Thoracic Oncology, University Hospital of Montpellier, Montpellier

bDesbrest Institute of Epidemiology and Public Health, University of Montpellier – INSERM – Inria (Premedical)

cWHO Collaborating Centre on Scientific Classification Support, Montpellier

dAgence Numerique de Santé

eFrench WHO Collaborating Centre, Paris, France

fDivision of Allergy and Immunology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA

Correspondence to Luciana Kase Tanno, MD, PhD, Department of Respiratory Medicine and Allergy, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, 371, av. du Doyen Gaston Giraud, 34295 Montpellier cedex 5, France. Tel: +33 467336107; fax: +33 467633645; e-mail: [email protected]