1. Allergy Department; National Institute For Cancer Research-University Hospital, Istituto di Ricovero e Cura a Carattere Scientifico - Azienda Ospedaliera Universitaria (IRCCS-AOU) San Martino; Genoa Italy
2. Department of Laboratory Medicine; IRCCS-AOU San Martino; Genoa Italy
3. Clinical Epidemiology Unit; IRCCS-AOU San Martino; Genoa Italy