Defective epithelial barrier in chronic rhinosinusitis: the regulation of tight junctions by IFN-gamma and IL-4 - Soyka, M B; Wawrzyniak, P; Eiwegger, T; Holzmann, D; Treis, A; Wanke, K; Kast, J I; Akdis, C A (J Allergy Clin Immunol, 2012)