The preventive effect probably lasts for at least the first 36 months of use.

It seems to be a functional food which can be expected to have preventive effects against cancer and thrombosis.

Several cohort studies suggest a preventive effect of aspirin.

The question is also that of whether the information service has a preventive effect, especially in the case of delays and such like.

It is precisely the intention that confrontation should have a preventive effect.

But also the requirement to provide cultural goods with a certificate of origin has a preventive effect.

After all, that can have a significant preventive effect and can, as such, be justified.

We hope that the proper investigation and prosecution of these crimes will also have a preventive effect.

It is worth emphasising that such an order would only have a preventive effect.

A study conducted in 2000 supports the view that the new, tougher policy has had a preventive effect on drug use.