41.   These and many other impressive therapeutic gains represent the handsome payoff of what medicine calls clinical trials.

42.   They, as well as analysts, are betting that at least one of the medications scheduled for introduction this year will also produce impressive gains.

43.   Windows NT has made impressive gains in the past year, after a lukewarm start.

44.   Yet that impressive gain in income hides some worrying disparities.

45.   According to the Globe, there have been persistent Internet rumors that the drug has made impressive gains against tumors in test patients.

46.   But while technology stocks took some scary falls, they have still managed impressive gains.

47.   Corn prices retreated Friday in early dealings on the Chicago Board of Trade following nearly two days of impressive gains.

48.   Declaring the party opposed to totalitarianism, he brought it into the conservative coalition government with impressive gains at the polls after four decades of isolation.

49.   Despite impressive gains across Asia early Thursday, analysts said the lower rates highlight concerns that the U.S. economic slowdown could be more severe than previously thought.

50.   Despite the impressive gains across Asia early Thursday, analysts said the lower rates highlight concerns that the U.S. economic slowdown could be more severe than previously thought.