Fig. 2From: Measurement of fasting breath hydrogen concentration as a simple diagnostic method for pancreatic exocrine insufficiencyBox plot of fasting breath hydrogen concentration (FBHC) in the exocrine pancreatic secretion test. Box plot of fasting breath hydrogen concentration (FBHC) in non-pancreatic exocrine insufficiency (non-PEI) and PEI groups. The median FBHC of non-PEI and PEI groups were 2.80 ppm and 15.70 ppm, respectively (P < 0.001)Back to article page