11.   But some Republican senators and their staff members said they expect roadblocks for any proposal that did not include at least beginning a trial.

12.   But none of the companies has actually made a commitment to begin clinical trials with a drug produced in milk.

13.   But they hope to begin clinical trials within two years.

14.   Canada researchers have so far tested the implants only in animals but hope to begin clinical trials within two years.

15.   Chow said he hoped to begin clinical trials with patients with retinitis pigmentosa within a year and a half.

16.   Chun and Roh have already begun separate trials on corruption charges.

17.   Cigarette shares dropped as Minnesota began its trial to recoup health-related costs from cigarette companies and analysts said prospects for a law limiting future lawsuits are fading.

18.   Clark plans to hear legal motions in her courtroom Tuesday afternoon and begin trial the day after.

19.   Comcast Corp. and four other cable television operators will begin trials of an Internet-access service over TVs in January.

20.   Connors was out on bail at the time Halloran insisted on beginning the trial.