The phrase "are not completely specific" is correct and usable in written English.
You can use it when discussing something that lacks clarity or precision in its details.
Example: "The instructions provided are not completely specific, which may lead to confusion during the execution of the task."
Alternatives: "are somewhat vague" or "lack full clarity".
The possibility of eradicating cancer by selective destruction of tumour blood vessels may represent an attractive therapeutic avenue, but most pharmaceutical agents investigated so far did not achieve complete cures and are not completely specific.
Since angiographic features in cerebral arteritis are not completely specific, the associated radiologic and clinical findings often are fundamental elements for a diagnosis [34].
Since pharmacological inhibitors are not completely specific, we performed a supplementary experiment using siRNA directed against Atg5, a protein involved in the lipidation of Atg8/LC3 [23] and hence in autophagosome formation.
Because it is now known that pharmacological inhibitors of autophagy are not completely specific to the autophagic process and thus may produce secondary or off-target effects [55], we finally included the use of RNAi technology for specific inhibition of autophagy.
Although pharmacological inhibitors (Table 3) can be used to inhibit internalization processes, these inhibitors are not completely specific and may suppress more than one cellular uptake pathway.
However, these autoantibodies are not completely specific, as they can be detected in other conditions, such as viral infections (e.g., hepatitis C virus) and neoplastic diseases [ 11], and sometimes in healthy individuals [ 12, 13].
FISH is a rapid method and theoretically can detect all EWSR1 rearrangements, but it cannot identify all partners and is not completely specific for ES.
The provision of socially desirable responses could happen in other methods of data collection (e.g. paper-based self-administered questionnaires and FTF interviews) and is not completely specific to ACASI.
On the other hand it has been shown that pifithrin-α is not completely specific in its action on TP53, as it is known to have targets other than TP53 [49]; [50]; [51] and pifithrin-α is known to protect cells from DNA damage-induced apoptosis by a p53-independent mechanism [52].
PAS staining alone is not completely specific.
This indicates that it is not completely specific for superoxide.
