Speed is the vital factor, as Arnhem must be reached within 2-3 days.

I am convinced that choice is a vital factor in education.

"That's certainly a vital factor in the problem," he commented at length.

At seven, this was a vital factor for the girls.

As the Indian example shows, domestic consumption is a vital factor.

But he said anatomy was not always the vital factor.

Another vital factor was the creation of a strong and vibrant youth section at this time.

In the only press release about the split, he also cited lack of time as being a vital factor.

Increasingly, blood type has emerged as a vital factor, but it is only one piece of the puzzle.

The element of time is a vital factor in assessing the particular mix to be offered to a market.