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Letter: Keno risk

Keno is a totally separate form of gambling to the National Lottery ("Camelot gambles on the pounds 100,000 scratchcard", 27 October). Gambling activities in which the time between money being gambled and knowing the result is short tend to be more addictive than those with long time gaps. This should be of serious concern to the Government.

Dr Mark Griffiths

Nottingham Trent University