The phrase "a special concern of" is correct and usable in written English.
It can be used to indicate that something is particularly important or relevant to a specific person, group, or issue.
Example: "Environmental sustainability is a special concern of our organization as we strive to reduce our carbon footprint."
Alternatives: "a particular focus of" or "a significant issue for".
Annual measurement is a special concern of mine.
Flexibility in education spending is a special concern of members of both parties with whom I've discussed.
That freedom is therefore a special concern of the First Amendment, which does not tolerate laws that cast a pall of orthodoxy over the classroom".
Fortunately, this is a special concern of Donald Rumsfeld, who headed an expert commission on the subject just before his nomination as secretary of defense.
The lighting, always a special concern of Wilson's, is elaborate: thick, inky shadows; then sudden, slicing lights; then something else again.
This is a special concern of regulators since the risk of amplifying stock fluctuations is latent [2], [3].
We recommend larger scale studies addressing this issue, with a special concern to the effectiveness of adequate replacement of vitamin D in preventing GDM.
The lack of ambulatory visits is a special concern for a smaller group of respondents, the 5.2% of children and 3.6% of adults (approximately 130,000 U.S. children and 140,000 U.S. adults) with asthma who made an ED visit or had a hospitalization but made no ambulatory visits during the year.
The growing foetus and newborn children are especially sensitive to the toxic effects of environmental mercury (Hg) and lead (Pb), providing a special concern for the effects of emissions due to climate change.
The characterization of appropriately ruled non-philosophers as slavish might suggest a special concern for the "heteronomous" character of their capacity to do what they want and a special valorization of the philosophers' "autonomous" capacity.
Patriotism is a special concern for the well-being of one's country and compatriots, a concern beyond what we owe other people and communities.
