"Extract is the only black elderberry preparation shown effective in clinical studies."

Methadone maintenance, on the other hand, has been shown effective in a large majority of addicts.

Several other compounds have been shown effective against S. trachea under experimental conditions.

Steroids are often tried but not shown effective.

However even levothyroxin supplementation in normal patients has been shown effective.

Tamoxifen has been shown effective but is very rarely used because of serious concerns about safety in premenopausal women.

The drugs will still have to be shown effective and safe in two phases of human testing.

Combining lime with one other treatment has shown most effective.

For the first time, a drug has been shown effective against the form of hepatitis that most frequently infects Americans.

Surgery, if needed, has been shown very effective for improving pain.