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. 2006 May 30;6:142. doi: 10.1186/1471-2407-6-142

Figure 4.

Figure 4

Relationship between deoxycytidine kinase activity and the radiosensitising effect of gemcitabine. Relationship between deoxycytidine kinase (dCK) activity and the radiosensitising effect of gemcitabine represented by the dose enhancement factor (DEF) for the different human tumour cells. (SF = surviving fraction)