1Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy
2Allergy Unit, Department of Internal Medicine, University Hospital Ospedali Riuniti, Ancona, Italy
3Laboratorio Congiunto per la Ricerca sull'Entomoterapia Medica, Microbiologica e Ambientale, University of Florence, Florence, Italy
4Allergy Unit, Azienda Sanitaria della Romagna, Rimini Hospital, Rimini, Italy
5Department of Internal Medicine, IRCCS Foudation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy