111.   Should the tests be used only when drugs begin to fail?

112.   Since the researchers began their project in January, they have detected both S. enteritidis and Escherichia coli using the test.

113.   Some, like Greenspan, use the tests to leap over gaps in the historical record or to resolve a family mystery.

114.   Some doctors also use another test, called PCR, or polymerase chain reaction, to look for pieces of DNA from the spirochete itself.

115.   States in other parts of the country using the test set standards no higher than the South, overall.

116.   States may use any test to track progress, the president says.

117.   Such tests are routinely used by government and industry to determine if toxic wastes are, for example, leaking into drinking water.

118.   Such tests are used to determine the possible presence of blood.

119.   The ALT test was used to help identify hepatitis C.

120.   The Biomira test is used only for recurrence of the cancer, not the initial detection.