Fig. 2

A Cumulative Distribution Function (CDF); B Delta Area Curve of consensus clustering, illustrating the relative change in the area under the CDF curve for each category number K compared with K-1; C Consensus K = 2; D Scatter plot of gene expression profiles in stem cells using principal component analysis (PCA); E Heatmap depicting stem cell gene expression; F Kaplan–Meier curve illustrating the prognosis of two clusters