71.   But as the largest minority group and the one with the highest death rates from most diseases, blacks arouse the most concern among experts.

72.   But Bryant has rebuffed his coach several times this season, causing more concern among the Lakers.

73.   But how effective the new office will be is a growing source of concern among security analysts and officials in Washington.

74.   But here, at the Austin hangout called La Zona Rosa, there are murmurs of concern among the Friday night regulars.

75.   But it has raised concerns among specialists in family planning that its use might have some unwanted consequences.

76.   But now, it is the severity and prevalence of their sleep deprivation that is causing a growing concern among researchers, educators, parents and even teen-agers themselves.

77.   But security is of equal if not greater concern among the people here.

78.   But some of his written responses to questions about abortion provoked concern among conservative senators.

79.   But that prospect has created major concerns among environmentalists and consumer advocates.

80.   But Stufflebeem, a top aide to the Joint Chiefs of Staff, acknowledged concern among American war planners of possible ethnic tensions should the Northern Alliance invade Kandahar.