They are thought to be fairly safe, although some experts have raised concerns about side-effects.
Common concerns about keeping a city up all night relate to noise, traffic and alcohol consumption.
Which? said 85% of people it surveyed had expressed concerns about rising fuel prices.
Total, the French oil company, is the latest to voice its concerns about investing in Iran.
Put aside the usual concerns about the conflicts of interest that many advisers face.
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Dean discusses many issues that are relevant concerns about population growth, including global warming.
Such a deal would have put to rest concerns about ChevronTexaco's short-term production growth.
The grievance document also refers to concerns about the chair of governors Abid Matak.
Mr McGuigan said there were concerns about prescription medication and poor drug treatment processes.
Relying on foreign resources may also assuage government concerns about having enough food, he said.
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It raised concerns about the exploitation of women and claimed the activity could increase crime.
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The council had rejected a second planning application which attempted to address concerns about traffic congestion.
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The aftermath of the killing has also raised concerns about rising Islamophobia in Britain.
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Concerns about showrooming (or pesky crowds and limited parking) can be (somewhat) dismissed according to Swirl.
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But anti-nuclear group Pawb says it has concerns about Wylfa's vulnerability to cyber-attacks and air assaults.
But there are continuing concerns about the impact the war is having on the overstretched Army.
They also raised concerns about the lack of support for older people and rural communities.
The city said the public interest in the information overrode concerns about its validity.
The next question will be whether the stock market will have similar concerns about the economy.
Lord Rees raises concerns about the social fragility and lack of resilience in our technology-dependent society.
The U.S. Senate's concerns about fair play and the costs of a clean-up are understandable.
And second, clients were openly expressing concerns about gender equity in their own companies.
He has publicly voiced concerns about what the Vioxx debacle means for drug safety.
The mayor dismissed concerns about air quality near the World Trade Center, which contained asbestos.
But there are also concerns about the impact on Kyaukpyu and other coastal areas.
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The shooting, during a festive Mother's Day parade, renewed concerns about crime in the city.
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The couple opted to take the money this year because of concerns about the economy.
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Mr Lundy urged parents who had concerns about their children to contact their schools.
There have been concerns about local politicians simply declaring themselves in charge of certain areas.
One source said he had concerns about the way the case was handled by Spackman.
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