A number of Middle East experts had warned that the region was drifting toward war.

But growing numbers of patients are warning others to weigh the risks very carefully before proceeding.

A number of his supporters have warned him to be more careful - to count to 10, as it were, before he speaks.

A number of fund-raisers also warned that the market's fluctuations could put a long-term chill on giving.

A number of experts on privacy issues warned that a determined hacker could probably get into protected records.

A number of 401(k) administrators are already warning workers about these risks.

But a number of doctors warned that Oxford might rebound from its losses by restricting care.

No one suggested that a crisis was at hand, but a number of politicians warned against letting the situation drag on, unresolved, for weeks.

Already a number of regular and prompt charge payers have warned they will withhold the £19.

In recent weeks, a number of companies have warned of earnings slowdowns.