21.   The scan score was raised in all patients who had clinically active disease but normal laboratory tests.

22.   Correlation between the scan score and laboratory tests varied with disease location.

23.   Laboratory tests are frequently normal in patients with unequivocally active disease and vice versa.

24.   Chest radiographs and laboratory tests are likewise usually normal.

25.   Laboratory tests have shown vinclozolin to cause birth defects and other reproductive abnormalities in animals.

26.   The walk combines a fun day out with the important business of raising funds to help the millions of animals who suffer each year in laboratory tests.

27.   Although the fish may not die from the levels of toxics, they allow the metals to be detected in laboratory tests, he said.

28.   Although the condition can be detected easily with an inexpensive laboratory test, testing is not widely available.

29.   As a result, Meister helped transform glutathione into a drug that has shown some initial promise of reducing the growth of the AIDS virus in laboratory tests.

30.   Before such pests can be released in test plots, however, they must pass stringent laboratory tests to be sure the control agents will not become pests themselves.