4 CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.
5 Department of Dermatology and Allergy, Berlin Institute of Health, Comprehensive Allergy Center, Charité, Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
6 MACVIA-France and Centre Hospitalier Universitaire of Montpellier, Montpellier, France.