10.1371/journal.pone.0130301.g003 Claire A Batty Claire A Batty Michael Cauchi Michael Cauchi Célia Lourenço Célia Lourenço John O Hunter John O Hunter Claire Turner Claire Turner Box and whisker plot showing the distribution of low risk and high risk samples for m/z 62 and m/z 94 using the O<sub>2</sub><sup>+</sup> precursor ion. Public Library of Science 2015 sulphide screening tests lack specificity dimethyl sensitivity colonoscopie faecal occult blood sample subject multivariate methods show Colorectal Cancer Diagnosis colorectal cancer compound ion flow tube mass spectrometry voc fobt Volatile Faecal Metabolome screening test 2015-06-18 04:08:06 Figure https://plos.figshare.com/articles/figure/_Box_and_whisker_plot_showing_the_distribution_of_low_risk_and_high_risk_samples_for_m_z_62_and_m_z_94_using_the_O_2_precursor_ion_/1453905 <p>CPS = counts per second, LR = low risk, HR = high risk.</p>