The phrase "great concern of" is correct and usable in written English.
It is often used to express that something is causing a significant level of worry or worry to someone. Example: The rising crime rate is a great concern of the local community.
"There is great concern, of course, about disclosing a list of targets that could be of use to terrorists or saboteurs," he told BBC radio.
The Reinheitsgebot, when Duke Wilhelm IV of Bavaria imposed it in 1516, had less to do with keeping peasants from poisoning themselves — never a great concern of the gentry — than with controlling the hops and barley crops.
"The initial information presented about disturbing a mass number of graves is a great concern of mine," he wrote, "but I anticipate the final recommendation will be much different from what was originally reported".
"It's a great concern of mine to preserve that sense of country that drew so many people to live and work here and to love Yorktown," the supervisor said.
But the great concern of those who evaluate evaluations is that professors buy favor not with their charm, nor with their chocolate, but with a far more valuable medium of exchange: grades.
Pledging that his organisation would "do everything" it could to cooperate during talks, Mortimer said: "We understand the great concern of junior doctors and are working hard to answer their questions.
Mitch McConnell, the Senate Minority Leader, once joked that campaign finance "ranks right up there with static cling as one of the great concerns of the American people".
Mr. Obama took time during the speech to address one of the great concerns of all Americans and the world, the state of our domestic auto industry.
Hundreds of cases of the direct transmission of avian viruses to humans with a case fatality rate exceeding 50% raised great concerns of a possible new pandemic.
But its continued good health is a matter of great concern to millions of Americans.
I know this an issue of great concern to many of you.
