"questionable concern" is a correct and usable phrase in written English.
It is usually used to describe a situation that is worrying or raises doubts. For example, "The sudden drop in sales is a questionable concern for the company."
Casablancas was a professional rival who was pushed out of his agency for questionable concerns.
Second, the findings point out the possibility that some published data are highly questionable concerning the action mechanisms of PGG in BCa cells.
After all, his sketchy stay with New York City FC has been marred by false starts, contractual confusion, fitness issues and questionable injury concerns.
But kids today have their own guerilla comics, racking up views on YouTube with the likes of Baiting Out Skets (and Baiting Out Fuckboys), DIY vox pops of questionable ethics concerning the sex lives of young Londoners.
I'm a different reader, and there are things that I would critique, if I had to: common complaints, about how long the novel is; or about questionable scenes concerning childhood sexuality that shocked me when I was a kid.
If the consolidation of public safety services around a vendor that's trying to bring more data and analytics tools to police departments when the efficacy of those tools is questionable is concerning, then the fact that the company is going to provide back end services to government agencies may be even more so.
Two of the tests (H2AX foci and Comet assay) used by Kotsopoulos et al (2007) were of questionable relevance concerning the repair of DNA DSBs.
We especially focused on this issue since at least one more publication reported questionable conclusions concerning vertebrate snoRNAs based on the Rfam and ENSEMBL annotations as well as multispecies whole-genome alignments [ 35].
Thus the detection of Helicobacteraceae from the three bulk tank milk samples of our study should be considered questionable, raising concerns also about the results obtained from milk with the cited 16S rRNA gene targeting PCR reported in the literature [ 29].
