The physicians' approach presents numerous problems, the article warned.

At the same time, the article warned that measures should be taken against potential threats to national unity through fractionalization.

The article warned against ignoring safety issues with use of biological agents.

An article warns that a Middle East war may be imminent.

The article both described the practice and warned that it was dangerous and should not be attempted.

True, many guidebooks and articles warned that Intourist was the only way to go.

The article warned that dangerous animals were loose in the city, with casualties of 49 dead and 200 injured.

Every article on health warns the obese and their doctors that they'll be seeing a great deal of each other.

The article warned that dangerous animals were loose in the city.

Taking medicine more than twice a day could be a potential problem for many people, the article warns.