11.   Some former clients say their own experience led them to doubt those claims.

12.   Some marketers, however, doubt that claim.

13.   The Saudi embassy doubts her claim.

14.   While its officials claim millions of members, they have stopped releasing the hard numbers, and many doubt their claims.

15.   Other researchers doubt claims that Mashaal was a major decision-maker in Hamas.

16.   Paul doubted the claim and confiscated the entire collection.

17.   A Chechen warlord has claimed responsibility for the attack, but his claims are widely doubted to have any validity.

18.   American officials doubt several claims of responsibility by previously unknown groups.

19.   American officials have acknowledged they have no leads on who was behind the truck bombing and doubt the claims of responsibility by previously unknown groups.

20.   But French authorities doubted the claim Tuesday, saying a search had failed to turn them up.