Text: It is not possible to place confidence limits on the NOEC and LOEC derived from a given test, and it is difficult to quantify the precision of the NOEC-LOEC endpoints between tests.
Entailment: A given test is not ample to place limits on the NOEC and LOEC.
Contradiction: It is possible to place confidence limits on the NOEC and LOEC derived from a given test.