Her follow-up study included 116 children who were 11 to 29 years old.

I wanted to know if he had done any follow-up studies on his students.

They plan to have another follow-up study in 2011 to see the long term changes.

Based on his follow-up studies, they have been about 85 percent effective.

Wouldn't that give them a way to do follow-up studies?

At least one more follow-up study is planned for 1998, he said.

A follow-up study of 16,000 was conducted from 1981 to 1985.

The follow-up study in 1997 found the systems still lacking.

There were also further follow-up studies conducted using a different approach.

In addition, the findings of two large follow-up studies are discussed.