These studies will last until 2011 and include up to 3000 participants.

All the studies were in two levels and lasted four years.

The first promotion came out in 1908 at a time when the studies lasted for 2 years only.

The study lasted from 1932 until it was exposed in 1972.

I'll bet the studies only lasted a few weeks or months.

The study involved 322 participants and lasted for two years.

But these studies have lasted only a few years, so the risk is still unknown.

The study lasted approximately 17 months and included 330 cases.

However, his study in laws only lasted for two years.

His study lasted 10 years and eventually included more than 1,000 people, most of them Americans.