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Nitrous Oxide canisters, balloons and boxes litter the Thames Path after youths spend the night inhaling the laughing gas Stock Photo - Alamy
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Teenagers in north Belfast warned they are risking their lives with new gas inhaling `craze' - The Irish News
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People inhale nitrous oxide (laughing gas) from balloons in Parliament Square in a mass inhalation protest against proposed legal ban on psychoactive substances Stock Photo - Alamy
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How dangerous is laughing gas? The history of the drug and its risks, explained | The Independent | The Independent
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