11.   Being able to take and test patient samples free of charge got the database going.

12.   Biot stressed that it was too early to draw firm conclusions about the virus until the blood samples were tested.

13.   A field lab has been set up in the village to test the samples.

14.   A young chemist tests a sample with a mini-lab set up in a hotel suite.

15.   After scientists discovered the AIDS virus, for example, they could test samples kept frozen for many years to determine whether the infection was present in the past.

16.   After those four samples were tested and retested, no traces were found.

17.   Burger King conducts more quality control and safety tests in pre-production, and also tests samples of every lot that is manufactured.

18.   But he plans to confirm his findings by testing skin samples from smokers and nonsmokers of various ages to see if the smoking has the same effect on collagen.

19.   Coach Bernie Bickerstaff then resigned and went back to the front office to test hemlock samples.

20.   Defense Department investigators tested a sample of the cable and found that it broke at roughly two-thirds of the minimum strength required by military specifications.