1.   He said there had been a recent unexplained increase in such cases on eastern Long Island.

2.   I mentioned that a friend of mine was unhappy with massive unexplained increases in Ranger season-ticket prices, but Araskog did not seem interested.

3.   If you notice unexplained increases in either of those symptoms, check with your physician.

4.   The CBO said Wednesdy it had detected a largely unexplained increase in tax revenues and a slightly stronger economic growth forecast.

5.   The company is reaching out to women because of an unexplained increase in acne cases in that group, Clark said.

6.   Police had been investigating an unexplained sharp increase in the number of deaths at the Landaas retirement home.