Nasal cytology as a reliable non-invasive procedure to phenotype patients with type 2 chronic rhinosinusitis with nasal polyps oleh Giovanni Paoletti, MD, Luca Malvezzi, MD, Anna Maria Riccio, BSc, Desideria Descalzi, BSc, Francesca Pirola, MD, Elena Russo, MD, Laura De Ferrari, BSc, Francesca Racca, MD, Sebastian Ferri, MD, Maria Rita Messina, MD, Francesca Puggioni, MD, Emanuele Nappi, MD, Diego Bagnasco, MD, Frank Rikki Canevari, MD, Fabio Grizzi, BSc, Giuseppe Mercante, MD, Giuseppe Spriano, MD, Giorgio Walter Canonica, MD, Enrico Heffler, MD