1.   But he worries that even an improved stool screening test could be a mixed bag.

2.   Now that he no longer takes aspirin, the stool test is negative, indicating that the intestinal bleeding has stopped.

3.   The first clinical study of the new DNA stool test appears Thursday in the New England Journal of Medicine.

4.   Doctors believe the test has the potential to be much more accurate than the current stool test, which checks for blood.

5.   Sakai officials have also asked residents to submit to free, voluntary stool tests.

6.   But she added that the link could not be confirmed as the bacillus was not found in stool tests carried out on the woman.

7.   But under the limited application of the law, administrative heads of local governments can require residents to have stool tests and inspect facilities suspected of being contaminated.