The phrase 'has been already tested' is correct and usable in written English.
This phrase is typically used to indicate that something has been tested and the results of the test are already known. For example, "This medicine has been already tested and it is known to be effective in treating the illness."
In this regard, neuroserpin, another member of the serpin family has been already tested as an adjuvant therapy for tissue-type plasminogen activator administration in a rat model of embolic stroke demonstrating neuroprotective effects [27], but the therapeutic potential of SERPINE-1, SERPINB1 or SERPINB9 is still unknown.
NaviCell functionality has been already tested in several concrete projects for navigation and curation of large maps of molecular interactions.
Moreover, this drug has been already tested in phase I clinical trials and is presently tested in phase II clinical trials for other human cancer types.
About half of the present cohort (437 patients) has been already tested for p16 CDKN 2 A germline mutations in our previous study [ 11].
Essential oils from these plants have been shown to exhibit significant antimicrobial activities and their antimicrobial activity against food-borne pathogens have been already tested (Chorianopoulos et al. 2004).
Although these techniques have been already tested separately, providing a significant increase of performance in clean acoustic environments, in this paper they are jointly applied and their performance in adverse acoustic conditions is evaluated.
Transplastomic plants producing human therapeutic proteins have been already tested in the field after obtaining USDA-APHIS approval [ 38].
Different targeted strategies have been already tested to radiosensitize GSC in order to suppress either their survival ability or their tumorigenic competency.
Indeed, since patients who had received a long-term glucocorticoid therapy may have been already tested and/or treated for OP, the removal of these variables increased the associated OR.
Moreover, LM-LLO-based vaccines have been already tested in cancer patients in phase I/II clinical trials, and flu-like symptoms are the only side effects observed (Rothman, 2008).
