The phrase "a defined population of" is correct and usable in written English.
It can be used in contexts such as research, statistics, or demographics to specify a particular group being studied or referenced.
Example: "The study focused on a defined population of adolescents aged 12 to 18 years."
Alternatives: "a specified group of" or "a particular cohort of".
Vasoactive intestinal polypeptide (VIP) interneurons express NEUN and PROX1 but lack CTIP2 (Fig. 1b), enabling isolation of a defined population of GABAergic nuclei37,38.
This included a defined population of MC4-R-positive neurons located in the ventral premmamillary nucleus (PMv).
The objective of this study was to evaluate the impact of a multifaceted improvement strategy on diabetes quality of care in a defined population of patients.
Although the pursuit of Medicare certification has been one of the most controversial events in hospice history no study has examined its impact using data from a defined population of hospices before, during, and after federal legislation was enacted.
To improve the understanding of the erythrocyte sedimentation rate and its determinants in the aged, a defined population of 111 ambulatory, retirement-home residents underwent thorough clinical and laboratory evaluation.
Last year, the United States Preventive Services Task Force ("USPSTF") determined that "annual screening for lung cancer... in a defined population of high-risk persons can prevent a substantial number of lung cancer-related deaths".
The area is well suited to epidemiological research as it has a defined population consisting of a range of social, cultural and geographical settings, with a centralised health provider.
This study estimated the prevalence of dysglycaemia in a consistent manner within a geographically defined population of over 1.4 million by age, gender and ethnicity based on laboratory results sourced from a comprehensive regional laboratory repository (figures 1 and 2).
We prospectively described antibiotic prescribing for a well defined population of patients in a large number of countries recruited at the same time.
Optogenetics is a technique that uses light to control the activity of a genetically defined population of neurons in the brain on a millisecond timescale.
