Fig. 1From: The relationship between endogenous thymidine concentrations and [18F]FLT uptake in a range of preclinical tumour modelsExamples of chromatograms. a Blank control plasma; thymidine-depleted human plasma was used as the control matrix. Human control plasma spiked with 2 ng/ml (8.3 nM) thymidine. c Typical mouse plasma sample. d Typical mouse tumour sampleBack to article page