Figure 4From: The in vitroeffect of gefitinib ('Iressa') alone and in combination with cytotoxic chemotherapy on human solid tumoursTumour growth inhibition by gefitinib vs. treosulfan + gefitinib in 2 different tumour types. Legend Figure 4a shows the positive effect of combining treosulfan plus gefitinib in cells derived from a skin melanoma compared with figure 4b in which the combination of treosulfan plus gefitinib has a negative effect in cells derived from an ovarian tumour.Back to article page