Figure 4. Plasma profile of TNF-alpha in patients having their first episode of alcohol- and gallstone-induced acute pancreatitis. Boxes indicate the range between the 25th and 75th percentiles of the data. The horizontal line represents the medians. Bars indicate the 95%- interpercentile range. Open boxes represent alcohol-induced acute pancreatitis and dashed boxes gallstone-induced acute pancreatitis.