This area has been studied in a number of trials since the early 1990s.

That would only be true with an infinite number of trials.

But the Iraqis may not be satisfied with a small number of trials.

That will require a vast number of arrests and trials in itself.

It has been studied in a number of clinical trials.

There are a number of clinical trials currently in progress.

Therefore, the expected number of trials before finding a suitable a is about 2.

The officials also pointed out that the number of trials increased last year for the first time in five years.

This policy led to a number of high-profile arrests and trials.

Drug companies, too, are taking a growing number of trials out of the country.