1.   The plastic membrane is treated to prevent this, and animal trials have shown no increased risk of clotting.

2.   Most wooden play equipment is made of wood treated to prevent insect infestation, but treated lumber still must be sealed.

3.   The casks must be carefully treated to prevent an accidental leak.

4.   This is an approach that has the approval of environmentalists, if the material is treated to prevent the spread of toxics.

5.   Those packages of Egg Beaters have been treated to prevent gelling.

6.   The first steps by Charles and his royal entourage as they emerged from their plane was on a mat treated to prevent the spread of the disease.

7.   The work suggests that some children at risk for anxiety problems can be identified early, and possibly treated to prevent those problems, Schwartz said in an interview.