The phrase "more studies concentrated" is grammatically correct and can be used in written English.
It means that there were additional or increased studies that were focused or centered on a particular topic or area. Example: "In recent years, more studies concentrated on the effects of social media on mental health."
Two more recent studies concentrated on clinicians in two single countries.
When HPV in OSCC became more obvious, several studies concentrated on characterizing HPV-positive OSCC (4, 7 – 9, 11 – 19 ).
This study will be followed by more work concentrated on using different neural network-based control algorithms for the control of extraction contactors.
More studies have concentrated on the mechanism of lipid metabolism and high-density culture, which are significant to the genetic improvement of high quality strains and the industrialization of aquaculture.
Nevertheless, most of the studies concentrated more on the biological, health behavioural and cultural factors.
Most of these studies concentrated on more than one passive cooling strategies selection for different months in a year for hot and humid subtropical climate, which are not cost effective and difficult to implement.
The studies examined different health conditions, except for four studies, that combined more than one medical condition; 19 studies concentrated on OSA or other sleeping disorders, three studies on hypertension or BP control programmes, two on DM and four were related to studying the use of drug and alcohol consumption.
The prevalence of BRCA1 mutation in familial or early-onset breast cancer led more and more studies to concentrate on the role of BRCA1 in TNBC [ 19, 40, 41, 43, 46, 49].
Other studies concentrated either on the impact of one or more material parameters (e.g., topography, stiffness or 3D architecture) or on the influence of soluble signals.
More specifically, these studies concentrate on load profiles, system losses, voltage profiles, phase unbalance, harmonic and stability impacts.
