But some experts say the trial results were not that impressive.

The companies did not announce the detailed trial results, saying they would be presented at a medical conference.

Development was stopped in late 2005 after unsuccessful trial results.

The drug maker, as part of the lawsuit's settlement, created a public Web site for trial results.

The final clinical trial results have not been reported.

While the details of the investigation have been lost, the trial results are known.

But the federal law that created the database did not require companies or academic institutions to post trial results.

The trial results had 5% of voters using the phone to cast a vote and over 10% voting via the internet.

Early trial results suggest that it may be a beneficial approach for patients who are at high risk from conventional surgery.

But companies are not required to disclose trial results to scientists or the public.