Although the univariate analyses above revealed associations between individual MRC complex activities and the F18L status of glioblastoma cell cultures, given the biological variability among the glioblastoma cell cultures in terms of their individual MRC complex activities, a series of multivariate analyses were used to investigate all the variables: F18L status, individual MRC complex activities, and CoQ10 levels, simultaneously. This evidence concerns the gene CD200 and glioblastoma.