11.   Federal officials said no clinical trials had been conducted to determine which of the two strategies was more effective.

12.   Further tests are being conducted to determine how long it had been buried.

13.   He said ballistics tests were being conducted to determine whether they ever fired their weapons.

14.   If Kaczynski is found guilty, a second phase of the trial would be conducted to determine whether he would be sentenced to death.

15.   Investigations now will be conducted to determine if the charges are warranted and court-martials should be held.

16.   Investigator David Delgado said further tests will be conducted to determine cause of death, with results expected in four to five weeks.

17.   More complex DNA tests are being conducted to determine whether blood on the glove could have come from Simpson, either of the victims or all three.

18.   Now research is being conducted to determine whether it really makes a difference.

19.   No tests have been conducted to determine the impact of transgenic food on the human diet.

20.   Once a Genentech scientist makes a discovery in the lab, pre-clinical tests are conducted to determine whether the discovery is suitable for humans.