"comments concerned" is a valid phrase in written English.
You can use it to refer to comments that are related to a certain topic, such as "The comments concerned the new policy that was recently announced."
Perhaps the most effusive comments concerned the deft handling of the city's traffic.
His most upbeat comments concerned American Pharoah, who will attempt on Saturday to do what California Chrome could not do last year and win the Belmont Stakes to complete America's Triple Crown.
When, in this Cif piece back in October 2008, we asked how the extra funds should be spent, one of the issues which came up repeatedly in the comments concerned the growth of of faith schools in the UK and the segregation of children according to their parents' beliefs.
The Facebook page promoting the documentary elicited a growing discussion after posting this comment on Thursday morning: "Talk about an EDC EXPERIENCE huh?!!" Most of the comments concerned whether, after Las Vegas, the Carnival should now come back to Los Angeles.
My critique to him after our breakup was three single-spaced pages, and, in the sense that my comments concerned his story, they were impersonal, but in the sense that his story was autobiographical and he knew that I knew this — he'd told me about the fishing trip with his stepfather that it was based on — they were not impersonal.
The trend continued in Kentucky, where the bulk of the public comments concerned the topics of evolution and climate change.
The Knicks treated Reggie Miller's comments concerning his distaste for their team like background noise today.
"My comments concerning my team were totally unprofessional and out of line," he added in the 300-word column.
Van Gundy, for one, did not approve of Camby's comments concerning his medical attention, and discussed it with Scott today.
They also made more positive comments concerning the goal version.
Some comments concerning the energies are in order.
