Sentence examples for cannot be firmly established from inspiring English sources

Further, true-negative SDRs cannot be firmly established, as it is in this group that the new, not-yet-established ADRs are to be detected.

The origin of incidental music cannot be firmly established.

The Boii, a Celtic people, left distinct marks of a fairly long stay, but its time cannot be firmly established.

A causal relationship between land use and soil carbon or carbon fractions cannot be firmly established since historical data from these soils are lacking, but the significance of the various carbon fractions is discussed.

Helicobacter species identity cannot be firmly established by 16S sequencing and the 400 bp product of the nested PCR further compounded this by only allowing sequencing over this short segment.

The presence of SARS-CoV in the CNS cannot be firmly established.

No relationship between these changes could be firmly established, however.

An activity for SIRT7 has yet to be firmly established.

To what extent this is driven by physical activity is yet to be firmly established.

However, the precise orthology/paralogy relationships to the mammalian counterparts are yet to be firmly established.

However, more work needs to be done before these relationships can be firmly established.