Fig. 1From: Inhibitory effects of metformin at low concentration on epithelial–mesenchymal transition of CD44+CD117+ ovarian cancer stem cellsLow concentrations of metformin did not inhibit the proliferation of pancreatic cancer cells. SKOV3 (a) and A2780 (b) cells were incubated with different concentrations of metformin for 72 hours and numbers of viable cells were determined by cell proliferation assayBack to article page