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. 2011 May 24;104(12):1869–1876. doi: 10.1038/bjc.2011.180

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Copyright © 2011 Cancer Research UK

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Typical comet images from MYU-3L cells treated with S⁴TdR and UVA. Thiothymidine treatment was for two cell-doubling times at 200 μM and UVA exposure was at 10 kJ m⁻². Irradiated cells were exposed to 20 Gy X-irradiation. (A) Unirradiated control; (B) Unirradiated S⁴TdR control; (C) Unirradiated UVA control; (D) Unirradiated S⁴TdR and UVA; (E) Irradiated S⁴TdR control; (F) Irradiated UVA control; (G) Irradiated control; (H) Irradiated S⁴TdR+UVA.