These usually involve animal "models", and the research cannot progress into full human clinical trials because of the huge costs involved.

Glandular research has not progressed very far at this time.

I agree with this, as much as I'm always keen to see how research progresses.

Schwartz says he believes this could indeed be happening, but research hasn't progressed far enough to prove it.

This new research progressed quickly and efficiencies of 10%-15% have been achieved by many teams.

Other astronomers hailed the results as an example of how fast research is progressing.

He has given a number of papers on the subject as his research progresses.

He was forced to change this view as his research progressed, he said.

I would like some kind of estimate from the Commissioner as to how that research is progressing.

As research progresses, new units and facilities become available for construction.