11. Sure enough : on Sunday, we gently raised the subject of all his negative tests . 12. A senior government official in Washington, said the negative tests fed a deepening sense bewilderment. 13. His case was dismissed after the negative test results. 14. Most countries require a negative test result before allowing an imported horse into the country. 15. A negative test shows no clumping of gelatin particles. 16. But with each subsequent negative test , at the labs in Calverton and Washington, the investigators'confidence waned. 17. The change will ensure that no animal is processed until a negative test result is confirmed. 18. Two versions of the likelihood ratio exist, one for positive and one for negative test results. 19. Negative tests on employees are perplexing workers'comp boards.20. For the most part we found completely negative tests with a very small amount of positives.
