Gelardi, M., Porro, G., Quaranta, V., Quaranta, N., Cassano, M., Ciprandi, G. and Study Group on CRSwNP, *Italian . (2020) “Clinical-Cytological-Grading and phenotyping in patients with chronic rhinosinusitis with nasal polyps: the relevance in clinical practice”, Monaldi Archives for Chest Disease, 90(2). doi: 10.4081/monaldi.2020.1277.