The team was excluded from this year's race by the organizers because of doubts about the team's willingness to root out doping.
The 2009 study by Karim Nayernia of Newcastle University, published in the journal Stem Cells and Development, had to be retracted within weeks because of doubts about its authenticity and accusations of plagiarism.
On Sunday, however, the United States said it was putting on hold the transfer of about 30 Afghan detainees because of doubts about the government's commitment to other parts of the memorandum of understanding.
In November, Mr. Strauss-Kahn's lawyers negotiated a confidential settlement with Nafissatou Diallo, the hotel maid who had accused him of sexual assault, allegations that were not pursued by the Manhattan prosecutor's office because of doubts about her credibility.
He efficiently wrote off Martin Luther for leaving behind in Germany "as many — indeed more — discords and disagreements because of doubts about his opinions than he himself ever raised about Holy Scripture".
On December 11th Unilever, a giant food company, said it was abandoning one of its palm-oil suppliers because of doubts about what it is doing in some of the world's forests.
Shortly before his suspension on July 18, he was told he could have nothing more to do with this continuing study on polar bears because of doubts about his impartiality.
In April, Christie's withdrew two Banksies from sale because of doubts about their authenticity, and stories about fraudulent Banksies pop up with a regularity that disturbs the auction houses.
Corcoran has not jumped on the VOW bandwagon at all, said Pamela Liebman, the company's president, partly because listing information is already widely available and partly because of doubts about VOWs.
