The GBM patients were divided into the ccGBM with PDGFRA amplified group (ccGBM with PDGFRAamp), the non-ccGBM with no PDGFRA amplification group (non-ccGBM with PDGFRAnon-amp), the ccGBM with PDGFRA mutation combined with amplification group (ccGBM of PDGFRAamp-mut), and the non-ccGBM with wild type PDGFRA with no amplification (non-ccGBM with PDGFRA-w, non-amp) group. The gene discussed is PDGFRA; the disease is glioblastoma.