11.   But the concerns remain.

12.   But the concerns about programming remain.

13.   But these concerns as yet remain largely hypothetical.

14.   But, he added, security concerns remain.

15.   Clark said concerns remain about where to find the money to carry out the extra work the bill requires of federal agencies.

16.   Concerns remain, however, over waiting times for appointments and frequent referrals off campus, especially at suburban and rural colleges.

17.   Concerns remain.

18.   Concerns remain over whether the remote equipment will strip medical treatment of its human element.

19.   Despite the assurances, concerns remain because the canal is so clearly vital to the U.S.

20.   Despite the feeling that Winnipeg has seen the worst of the flood, concern remains high for an area southwest of the city that is still threatened.