Fig. 1From: An integrative bioinformatics investigation and experimental validation of critically involved genes in high-grade gliomasPCA scatter plot based on gene expression profiles in 301 samples from 5 datasets. Left: Merged datasets before batch effect correction; datasets are specified with different colors. LGG and HGG samples are shown with circle and triangle symbols, respectively. Right: Merged datasets after batch effect correction; blue and red dots are shown HGG and LGG samples, respectivelyBack to article page