Lung cancer is a cancer that forms in tissues of the lung, usually in the cells lining air passages. The two main types are small cell lung cancer and non-small cell lung cancer.
This video released by Macmillan Cancer Support provides a general overview of lung cancer.
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First Minister Nicola Sturgeon is seeking to make a statement later today on 'the way forward for Scotland after the General Election'.
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The world's first ever 'hole in the wall' was installed in Enfield, north London, on June 27 1967.