Fig. 5From: Cytokine patterns in nasal secretion of non-atopic patients distinguish between chronic rhinosinusitis with or without nasal polysLevels of tryptase and ECP in nasal fluid in controls, NP and CRSsNP: box plots of the levels of tryptase (a dark grey) and ECP (b light grey) in nasal secretion are shown. Tryptase and ECP are significantly elevated in NP compared to controls. ***p < 0.001Back to article page