The phrase "a subgroup of these" is correct and usable in written English.
It can be used when referring to a smaller group that is part of a larger set or category.
Example: "In our study, we focused on a subgroup of these participants who exhibited unique behavioral patterns."
Alternatives: "a subset of these" or "a division of these".
A subgroup of these interneurons express fast nAChR currents mediated by α7-containing nAChRs in mPFC L511.
This study also used 18FDG-PET to examine a subgroup of these patients and quantify the rCMRGlu correlates of change in anhedonia levels associated with ketamine treatment.
To assess the success of the intervention, the first and final drafts of 20 students' reports were compared and a subgroup of these students was interviewed.
A subgroup of these viral proteins binds chemokines, a complex family of cytokines that control the recruitment of cells to sites of infection and inflammation.
Single turnover kinetics were done on a subgroup of these, comparing activity on two lesions, 5,6-dihydrouracil and 5,6-dihydrothymine, with different opposite bases.
But the research published by the Department for Communities and Local Government estimates that an average of £26,200 a family was spent in the 12 months before they started receiving support as part of the programme, and an average of more than £44,000 was spent on a subgroup of these families who warranted the most intensive forms of family intervention.
The rheological properties of a subgroup of these synthetic binders consisting of four MA homo-polymers and one MA BA co-polymer were then determined by means of oscillatory testing using a dynamic shear rheometer (DSR).
To characterize the nutritional status of school-aged children from an urban public school in Mexico City, Mexico, and to assess the influence of obesity on health status in a subgroup of these children.
A secondary purpose was to evaluate whether a subgroup of these men could omit metastasis staging.
A subgroup of these patients are overusing acute medication, a condition termed "Medication overuse headache" (MOH) in the IDHD-2.
Despite the efficacy of this dual antiplatelet therapy in reduction of adverse coronary events in patients with acute coronary syndromes, complications persist in a subgroup of these patients.
