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Boxplots showing in units of nmol/mol lower quartile (LQ), median, mean and upper quartile (UQ) calculated volume mixing ratios (VMRs) for (a) methanol, (b) 2-butanone, (c) carbon disulfide, (d) 2-pentanone, and (e) limonene for 31 patients with liver cirrhosis, 30 controls and room air samples. Whiskers are 1.5 times the inter-quartile range and outliers are depicted by a star.
