In the study, about 20 percent of the patients with and without the drug died.

Especially in the study, where he had worked at night.

The average age of those in the study was 68.

He led one of the research groups in the study.

"He was the only other person who could have been in the study."

Average age of the women in the study was 19.

The average age of children in the study was 3.

The children taking part in the study are between 4 and 8 years old.

He had been in the study for over an hour.

Most of his mind was still back in the study.