1.   The potential concentration of those activities might also prompt antitrust regulators to give any merger close scrutiny, Threlfall said.

2.   Although liberals in recent years have become more sympathetic to efficiencies as a defense of mergers and monopolistic conduct, Muris has said antitrust regulators need to go further.

3.   Although a combination would make sense strategically, a deal could face opposition from antitrust regulators, some analysts warned.

4.   American maintains that the deals, which still must be cleared by antitrust regulators, are good for consumers.

5.   Analysts were not sure if those overall numbers would concern antitrust regulators.

6.   Analysts said antitrust regulators would probably require Bayer to divest some assets, particularly in the area of insecticides, where Aventis and Bayer are the two leading companies.

7.   And antitrust regulators are eager to rebound from recent setbacks in their efforts to police hospital mergers.

8.   Analysts, investors and antitrust regulators say Rite Aid made a mistake in waiting until early April to make is first offer.

9.   And antitrust regulators continued to thrive in the years of the civil rights movement and of Ralph Nader.

10.   And Pepsi may have to sell All-Sport to appease antitrust regulators.