Fig. 2From: Mass spectrometric study of variation in kinin peptide profiles in nasal fluids and plasma of adult healthy individualsKinin levels in plasma of healthy individuals. Box plots of endogenous levels are displayed in A (n = 24). Box plots of artificially altered kinin levels are presented in B (n = 25). An overview of median [interquartile range (IQR)] levels is shown in C LLOQ: lower limit of quantificationBack to article page