The phrase "ascertain given" is not correct and does not convey a clear meaning in written English.
It seems to be an incomplete expression and lacks context to determine its intended use.
Example: "We need to ascertain given the circumstances what our next steps should be."
Alternatives: "determine based on" or "establish considering".
Activists reported casualties though the numbers were difficult to ascertain, given the difficulties in communication and the Syrian government's suppression of independent news gathering.
When the characteristic bone resorptive fields of the H. sapiens face first appeared is difficult to ascertain given the present dearth of juvenile faces in the Lower-Middle Pleistocene record outside Sima de los Huesos.
Currently, farmer organisations place the number killed across the country at more than 300, but a precise record of victims has been difficult to ascertain, given the circumstances of the murders and the lack of investigations carried out by the country's bureaucracy-laden judicial system.
Disease duration was more difficult to ascertain given recall bias, especially in the adult patients.
This possibility, however, is hard to ascertain given that the dialysis dose in the IHD group is not stated.
The prevalence of paediatric dysphagia is difficult to ascertain given the wide variations in how swallowing impairments are defined and the assessment measures used to identify them.
A total of 131 cases of fetal hydrocephalus with no associated neural tube defect were ascertained, giving a minimal incidence of 4.66/10,000 total births.
Whether his memory had been reduced by the years or was deliberately selective I was never able to ascertain, but given such incidents continued throughout the competition Locatelli's recollections still seemed on the money.
Cause and effect inferences cannot be ascertained, however, given that a number of studies used a cross-sectional study design [ 3, 7- 9, 19, 27].
The latter can be regarded as a highly accurate method of ascertaining stroke, given that it is based on routine test procedures such as computed axial tomography ('CAT') scans.
He suggested that the choice of A1C goal requires ascertaining a given patient's preferences for longevity versus eye/renal complications, a very difficult conversation to have with patients, many of whom are "just not able to understand" these concepts.
