So researchers urged caution at this early stage.

Many researchers have urged caution in the classification of early polysporangiophytes.

But other researchers urged skepticism and cautioned against abandoning efforts to reduce total fat intake.

The researchers urged that further research be undertaken quickly to see whether the findings could be verified.

But some researchers urged caution in predicting when the results will be put to clinical use.

The researchers found, however, that the drugs were safe when properly used and urged better education for doctors about the medication.

The researchers urged a greater effort to educate black parents.

The researchers urged doctors to be more aggressive about making sure patients were following their prescription regimens.

The researchers urged physicians to take a more active role in educating bicyclists.

The researchers urged further study of high-risk dogs to prevent attacks.