Extended life was not the only observable difference between the two groups.

VOA: special.2009.09.01

It surely is the only important difference between us."

VOA: special.2009.07.16

"I think a film like this can make a difference by raising people's awareness of not only the problems that are out there, because a lot of films are gloom and doom, but solutions that are out there.

VOA: special.2009.03.25

And in sub-Saharan Africa, where only four percent of the land is irrigated, buying a small pump can make a big difference.

VOA: standard.2010.08.09

But the results were closer than predicted, with only a five percent difference between the two men.

VOA: standard.2010.07.03

The only difference is they have one period a day where they study Islam."

VOA: standard.2010.07.12

A difference not only now, Miliband says, but also in the long term.

VOA: standard.2009.03.29