The phrase "a main concern in" is correct and usable in written English.
It can be used when discussing a significant issue or topic within a specific context or field.
Example: "Climate change is a main concern in environmental policy discussions."
Alternatives: "a primary issue in" or "a key concern in".
While the problem of health workforce shortages was a main concern in the Iraqi health system a decade ago [ 1, 2], uneven distribution of human resources for health, particularly of the skilled workforce, is becoming a bigger concern today [ 1, 2, 5, 21].
Energy efficiency is a main concern in the CWNs.
Stability is a main concern in the school choice problem.
Access to health services is a main concern in poor countries.
Teacher education has always been a main concern in the English Language Teaching (ELT) domain.
Efficiency is becoming a main concern in the design of power transmissions.
In this activity, we can assume that each software requirement has a main concern "MC defined in the "specify the main concerns" activity—"Specifying the main concerns" section) and a set of zero or more related concerns { C1," "C2," … "Cn"}.
This follicular depletion observed after ovarian tissue transplantation is a main concern, especially in humans and large animal species that have a dense ovarian cortex, as it may affect the follicular growth dynamic, the hormonal environment and the fertility restoration potential.
A main concern for European pastoralists in this pillar relates to the classification of land and thus their eligibility for CAP subsidy schemes.
The unity of consciousness was a main concern of most philosophers in what is often called the 'classical modern era' (roughly, 1600 to 1900), including Descartes, Leibniz, Kant, Hume (in a way; see below), Reid, Brentano, and James.
Creating a perfect balance wasn't a main concern, but I am never interested in writing stories about simple victims and simple villains.
