Teenage smoking in England has fallen after introduction of a law that forbid buying cigarettes before 18 years of age.

The findings, published in the journal Addiction, are based on a survey of more than 1,100 young people in that age group across England.
Cancer Research said the results were evidence that tobacco policies could make a difference.
Jenny Fidler, the report's lead author who is based at Cancer Research UK?s health behaviour research centre at University College London, said: ?The new law looks to have helped reduce smoking prevalence among younger age groups.
"This is good news for the future health of this generation of young people and shows that tobacco policies can make a real difference.?
Before 2007 retailers could legally sell cigarettes to anyone over the age of 16 in England, Scotland or Wales, while the same was true in Northern Ireland until 2008.
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The charity says stopping young people from starting smoking is essential in order to reduce the death toll.
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?We need to do more to protect young people. We urge the government to prevent more lives being lost to an addiction that will kill half of all long term smokers."
She said regulations banning tobacco displays in shops and cigarette vending machines were "needed and wanted by the public".
A Department of Health spokesman said discussions were being had on how to further tackle smoking.
He added: "We welcome these findings as nearly all adults who smoke get hooked when they are young.
"Smoking is the biggest preventable cause of death in England, causing over 80,000 premature deaths in England each year."
Source-AFP