But the authors caution that some parents of children with what they think are speech delays go overboard in trying to speed development.

Still, the authors cautioned that further study was needed.

The report's authors cautioned against drawing conclusions that were too negative.

The authors rightly caution, however, that success in meeting these special needs must be judged through practical use over time.

The authors caution against reading too much into the results, given the small sample size.

The study's authors cautioned against overemphasizing the importance of the results.

Its authors caution that it's of "modest utility," and other scholars think that's too kind.

The authors caution about the limitations in the statewide data.

But the author cautions against becoming too impressed by all this.

Where integration works, the authors caution, it depends on tireless effort.