Fig. 4

Tumour thymidine concentrations were very variable across tumour models, ranging from 0.54 ± 0.17 μM to 20.04 ± 3.65 μM. Column fill indicates the centre supplying the tumour samples. Error bars show ± SD; numbers of tumours are indicated on the columns. See Additional file 1: Figure S6 and ESM Table (a) for the plotted values and the median, maximum, minimum, first and third quartiles