Of the 400 clinical studies, 10% were found to be good quality.
The company is also working on a clinical study that could create a huge new market for the drug.
But clinical studies have failed so far to make the case.
So far, the data from clinical studies in children do not support this theory.
"We have clinical studies to show that this is true."
There are few clinical studies on this or related systems.
And for every five drugs that get into human clinical studies, only one ever makes it to market.
He may not participate in clinical studies paid for by the company.
Three phase I clinical studies had reported results by 2003.
As with the clinical studies, the participants must first meet requirements set by the center.