Still, researchers believe this area of medicine deserves exploration because treatment of distressed moods can make a difference.

CNN: People

The game is played differently in the southern hemisphere, particularly at the tackle area, and there is sometimes a difference of interpretation by referees.

BBC: Martyn Williams column

It is also important to note that screen sizes are measured diagonally and even a small increase can make a big difference in the viewable area of the screen.

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One small area of difference: Serve allows users to fund their Serve accounts with a credit card for a fee (2.9% plus 30 cents).

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So we'll continue to work through that area of difference with the Russians because we believe that they can play a role, again, in pressing the Assad regime and supporting a political transition.

WHITEHOUSE: Press Briefing

Passenger Focus found a large difference in levels of overall customer satisfaction depending on the area in which people travel.

BBC: Rail fare 'dissatisfaction' grows, survey suggests