Sentence examples similar to unresolved problems persist regarding from inspiring English sources

However, problems persist regarding its proprietary and inaccessible nature.

In addition, further studies specifically designed to clarify unresolved problems regarding vaccine use in paediatric and pregnant populations are needed to convince reluctant health authorities.

Yet problems, big problems, persist.

Problems persist elsewhere too.

Some problems persist.

And yet problems persist.

But problems persist.

Other problems persist.

Plenty of problems persist.

Serious problems persist.

Meanwhile, problems persist.