Six additional antimicrobials (Cycloheximide, Beauvericin, Colchicine, Fluconazole, Miconazole, and Valinomycin) and seven anti-cancer drugs (Bisantrene, Camptothecin, Cisplatin, Imatinib, Methotrexate, Mitoxantron, and Tamoxifen) were included to provide a large data set with sufficient power to test our GBM-based ABC-transporter substrate prediction method. This evidence concerns the gene ABCG2 and cancer.