But dietary intervention often fails to lower cholesterol levels, and the next step is drug therapy.

Even scientific intervention had failed to improve their survival rate.

We are not intervening because our intervention in the past failed to bring hoped for results & generated new animosities.

Even the intervention of state mediators has failed to resolve the strike.

Any intervention could fail, embarrassing the Clinton administration.

We propose two explanations for why our interventions failed.

If intervention through antibiotics fails, patients are directed toward surgical treatment options.

But this aggressive intervention failed to halt the decline of the dollar.

Military intervention by foreign countries has also failed.

If other interventions have failed, several operations have been reported to provide benefit.