Cirillo, I., Vizzaccaro, A., Tosca, M., Negrini, S., Negrini, A., Marseglia, G. and Ciprandi, G. (2005) “Bronchial hyperreactivity and spirometric impairment in patients with allergic rhinitis”, Monaldi Archives for Chest Disease, 63(2). doi: 10.4081/monaldi.2005.642.