Figure 2

Boxplots of CK19 mRNA expression data obtained from a public database. The box encloses the first to third quartiles, the bar inside the box represents the median, the whisker at the top indicates the maximum value excluding outliers, and the whisker at the bottom indicates the minimum value excluding outliers. (a) CK19 mRNA expression data obtained from cBioPortal for patients with cancers of various types. The number of samples is shown in parentheses. (b) CK19 mRNA expression microarray data obtained from GSE11969 for patients with lung cancers of various histological types. The number of samples is shown in parentheses.