Further study and analysis are needed to determine the full potential.

But she said more work was needed to determine costs.

More research is needed to determine why that should be so.

"Further studies are needed to determine the cause of low B12 levels."

Now he just needed to determine whether or not he'd really found it.

The department has since received most of the information it needed to determine a new rate.

For now he just needed to determine what was happening.

The researchers said more study is needed to determine all of the factors involved.

Much more research would be needed to determine how it works in people, researchers said.

So better ways are needed to determine who should be treated.