Some athletes say their positive test results for the drug were caused by eating beef.
She said the positive test was caused by pregnancy but her claims were rejected.
Ramirez at first retired rather than face a 100-game suspension for a second positive test.
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The ACB said the positive test had been triggered by fluid reduction medication, which Warne claimed was not performance-enhancing.
He blamed the positive test on a tainted supplement, which he never identified.
Tour de France winner Floyd Landis is maintaining his innocence despite a second positive test for increased levels of testosterone.
Initial roadside tests on Sunday for the H1N1 virus were negative, but results later in the day confirmed a positive test.
Mr. Armstrong admitted to Ms. Winfrey that he covered up a positive test in the 1999 Tour de France for corticosteroids.
Turnbull wasn't informed of the positive test until 12 June this year - almost nine months after the original sample was taken.
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The positive test, had it stood up, would have caused him to be suspended for the first 50 games of the season.
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Gatlin, the 2005 world 100m and 200m champion, gave a positive test for testosterone at the low-level Kansas Relays in April 2006.
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But, despite no positive test results, staff said they were still concerned.
Mr. Contador, who also won the 2007 and 2009 Tour de France races, has blamed the positive test on inadvertently eating contaminated meat.
Brakes said one positive test at 1% horse DNA was reported by a customer of Creative Foods for a lasagne made exclusively for that outlet.
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Patient education is the antidote to angst about positive test results.
Cabrera, the All-Star game MVP, was suspended Aug. 15 for a positive test for testosterone and is missing the final 45 games of the regular season.
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"Throughout his 20-plus year professional career, Mr. Armstrong has been subjected to 500 to 600 drug tests without a single positive test, " the refiled suit reads.
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The ATP has refused to comment on Greg Rusedski's positive test for the banned substance, but insists it will enforce any punishment meted out to the player.
After his positive test last year, Anthony offered some insight into the amateur's motivation to cheat, saying his obsession with winning drove him to use banned drugs.
But the 24-year-old was pulled out of the event by USA Track and Field after his positive test at the US indoor championships in Albuquerque, New Mexico, on 28 February.
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Its report also said Armstrong made a "financial agreement" to bury a positive test for a banned substance and accused the team of falsifying prescription records to cover corticosteroid use by Armstrong.
The positive test results were returned in the week the cancelled Royal Welsh Show was due to take place and fears over the future of agriculture and the tourism industry have now intensified.
The Consumer Product Safety Commission said that they didn't find home test kits useful for detecting lead because in their test, they found too many false negatives and a few false positive test results.
The latest lawsuit filed by Armstrong, and dismissed Monday, claimed that Armstrong hasn't had "a single positive test" in the 500 to 600 drug tests he's taken in his over two decades in cycling.
Mr. Armstrong denied to Ms. Winfrey the accusation that he paid off the Union Cycliste Internationale, the sport's international governing body, to get out of a positive test at the 2001 Tour de Suisse.
He admitted to Ms. Winfrey that the prescription for the cream was written after the positive test and backdated by a doctor to make it appear as if he had already been taking it.
Dettori revealed in October that he will be ending his fulltime role at the Godolphin stable next year, and last month news broke about his positive test during a race meeting at the Longchamps course in Paris.
The FFT added in a statement released to Press Association that it "would be very sad for Richard Gasquet himself, for tennis in general, for French tennis in particular, whose image would be dented" if the positive test was officially confirmed.
Dr. Robert Bonow, chief of cardiology at Northwestern University's Feinberg School of Medicine, notes that about 10 percent of study participants with a positive test had normal coronary arteries, and 17 percent of those with a normal test had coronary disease.
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