Fig. 2

The figure illustrates the measured fluid temperatures using boxplots and line graphs. The red line and blue line connect the data from Hotline and S-line respectively. Boxes indicate the interquartile range, the bold horizontal lines in the box are the median values, and the whiskers are the range. Outliers are displayed as dots. a room-temperature fluid at 250 ml/hr, b cold fluid at 250 ml/hr, c warm fluid at 250 ml/hr, d room-temperature fluid at 100 ml/hr, e cold fluid at 100 ml/hr, f warm fluid at 100 ml/hr