The phrase "ascertained at the" is correct and usable in written English.
It can be used when referring to the process of determining or discovering something at a specific point or location.
Example: "The results were ascertained at the final stage of the experiment."
Alternatives: "determined at the" or "established at the".
The study cohort comprised diffuse large B-cell lymphomas (173 cases) consecutively ascertained at the Memorial Sloan-Kettering Cancer Center between 1989 and 2008.
The term one or more beneficiaries includes those members of a named class who are alive and can be ascertained at the time of the transfer of the property to the fund.
Indeed, the acceptance of volunteers for the juries had received publicity in the newspapers, and their presence on the petit jury could have been ascertained at the time it was constituted.
From October 1 , 1995to September 30 , 1996all injury-related ED visits among District of Columbia residents <3 years of age were ascertained at the 10 hospitals where city children routinely sought care.
A total of 71 individuals declaring an Ashkenazi Levite or Ashkenazi non-Levite paternal heritage were ascertained at the inception of the study to belong to haplogroup R1a-M582, and based on their STR profiles, to represent a broad range of the variation found within that haplogroup.
Music preferences were ascertained at the outset of the study.
The number of surviving animals was ascertained at the end of the experiment.
Cases were ascertained at the Mayo Clinic, Rochester, MN (n = 396) or a 48-county region in North Carolina (Duke University; n = 534).
As a consequence, data from the UK show that 31% of patients with a final diagnosis of DCIS only will also have had their nodal status ascertained at the time of breast surgery [4].
In addition, we will also look at Vasubandhu's critical response to the Pudgalavādins, and the issue of whether the reality of persons can be ascertained at the conventional level without undermining the metaphysical underpinings of the Buddhist not-self doctrine.
Demographics and anthropometrics were ascertained at the preoperative clinic visit.
