Two dimensional peak distribution view of the two peaks (m/z 1467 and 4215). The peak area and the m/z values are indicated on the x- and y-axes. The ellipses represent the standard deviation of the class average of the peak areas/intensities. Red represents colorectal cancer patients and green represents healthy volunteers.
Fan et al. Diagnostic Pathology 2014 9:53 doi:10.1186/1746-1596-9-53