Figure 2: Illustrates the percentage of cell death (vertical axis) for single chemoagents, metformin, and combinations of chemoagents with metformin. Legend: 5FU: 5-fluorouracil; ART: Artesunate; CIS: Cisplatin; DCA: Dichloroacetate; DOC: Docetaxel; DOX: Doxorubicin; ERL: Erlotinib; LET: Letrozole; LOM: Lomustine; MET: Metformin; MTX: Methotrexate; RAP: Rapamycin; RBV: Ribavirin; TAM: Tamoxifen; TMZ: Temozolomide * All tumors were of high grade/metastatic potential unless noted; no tumor was naïve; no tumor was a primary; Flow Cytometer - 10,000 events were counted for each SCH.