Tackling Cancer - what you need to know

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Cancer is probably the most well-known disease in the world. There are about 13 million new cases every year, with this number expected to rise to 22 million by 2030.

Different countries have very different cancer rates. This is partly because the risk is affected by lifestyle. Knowledge of the disease has advanced in recent decades but scientists are always battling to improve treatments.

BBC Health Correspondent Jane Dreaper explains more on the global fight to tackle cancer.

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