The phrase "ascertained at both" is not correct and does not convey a clear meaning in written English.
It may be intended to express that something has been confirmed or determined at two different points or locations, but the phrasing is awkward.
Example: "The results were ascertained at both locations to ensure accuracy."
Alternatives: "confirmed at both" or "determined at both".
Self-reported difficulty falling asleep or early morning arousal (insomnia), along with physician diagnosis of heart disease, stroke, cancer, diabetes, or hip-fracture, self-report of physical disability, depressive symptomatology, perceived health status, and use of medications ascertained at both baseline and three-year follow-up.
AMD patients and unrelated controls were ascertained at both Vanderbilt University Medical Center (VUMC) and Duke University Medical Center (DUMC).
Inhibition of both CYP enzymes was ascertained at a functional level in all transfected cell populations by EROD assays.
We used both diagnostic and dimensional data ascertained at multiple time points during follow-up to study the course of major depressive disorder in a large cohort of older patients in primary care.
In both studies retinopathy status for each patient was ascertained at the last follow-up visit.
Associations with death and nutritional outcomes, ascertained at follow-up visits to case and control households, are evaluated both in MSD cases and in the population.
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 number of lives lost so far as can be ascertained at present is 16.
The latter were classified as "long-term" if they were ascertained at least 6 months after birth.
Appetite assessment and dietary energy and protein intakes using a 2-day diet diary assisted recall are ascertained at baseline and on a yearly basis.
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.
