1.   Doctors have initiated a series of tests to determine the cause of the problem.

2.   In an effort to head off further trouble from the military Aquino initiated a series of two meetings a week with officers for a free-wheeling dialogue.

3.   At the same time NBC, whose West Coast president, Scott Sassa, helped initiate the series, has aggressively marketed the show.

4.   H.T. Smith, an attorney in Miami, plans to initiate a series of meetings with Miami Heat, Panthers, Dolphins and Marlins players to do just that.

5.   In May, federal mediators initiated a series of six discussions between top-level negotiators from both sides.

6.   In rapid succession Mrs. Helmsley has initiated a series of legal actions against Malkin in recent weeks.

7.   Most experts expect the Fed to keep rates steady during the first half and initiate a series of modest increases at midyear.

8.   One reason for hope is the increasing probability that the Federal Reserve later this month will initiate a series of interest rate cuts.

9.   The gas initiated a series of biochemical steps that led to an erection.

10.   The former officers of HBOC are accused of initiating a series of accounting irregularities to inflate the value of HBOC before the merger with McKesson.