In a study of 150 melanoma patients, 95% of those testing positive for melastatin stayed in remission for four years, versus half of those testing negative.
If one in 1, 000 people have a disease and the false-positive rate for a test is 5%, then the probability that a person testing positive has the disease is at most 2%.
Hudson was sacked by his previous club Bradford after testing positive for the banned steroid stanozolol.
The American has accepted testing positive but claims he never knowingly used banned substances.
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In 2006, he was suspended by the NFL for four games after testing positive for steroids.
Melky Cabrera and Bartolo Colon are both facing 50-game suspensions after testing positive for testosterone usage.
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Morocco's Jamel Chatbi withdrew from the final after testing positive in a doping test after the heats.
Then San Francisco Giants outfielder, Melky Cabrera, was suspended for 50 games for testing positive for testosterone.
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To avoid beatings and abuse, women who think they may be HIV-positive may delay testing and diagnosis.
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Schumacher is already serving a ban after testing positive for Cera during last summer's Tour de France.
On Wednesday world 100 meters champion Torri Edwards was banned for two years after testing positive for nikethamide.
Meanwhile, Sharks fly-half Herkie Kruger is facing a two-year ban after testing positive for the anabolic steroid nandrolone.
Last year some 3, 741 farms suffered outbreaks, and 34, 183 cattle were slaughtered after testing positive for bovine TB.
Garzelli, winner of the 2001 race, was suspended in 2002 after testing positive for the banned diuretic probenecid.
Former Australia goalkeeper Mark Bosnich was also punished with a nine-month suspension after testing positive for cocaine in 2003.
He was suspended for 50 games without pay after testing positive for testosterone.
In the 2012-13 operation, 35, 493 people were tested, with 502 (1.4%) testing positive or failing or refusing a test.
Between 18 December and 2 January, 453 drivers were breathalysed in North Yorkshire with 26, or 5.75%, testing positive.
In the 2011 drink-drive campaign, 27, 744 people were tested, with 545 (1.96%) testing positive or failing or refusing a test.
North Wales Police carried out the highest number of breath tests at 18, 780, with 107 people testing positive, failing or refusing.
The Australia leg-spinner was banned for 12 months from all international and first-class cricket after testing positive for a banned substance.
An investigation was launched by men's tennis' governing body when Bohdan Ulihrach was given a two-year ban after testing positive for nandrolone.
In the CBS interview, Hamilton, who retired in 2009 after twice testing positive himself, says he first saw Armstrong use EPO in 1999.
CNN: Lance Armstrong refiles suit against anti-doping agency
In October 2006 he was given a two-year suspension for testing positive for the banned steroid nandrolone but this was later rescinded on appeal.
Elsewhere, the International Tennis Federation announced Thursday that Barbora Strycova has been handed a backdated six-month ban after testing positive for a banned stimulant.
Police tested 27, 744 motorists in Wales as part of last year's campaign, with 545 (2%) testing positive or failing or refusing to take a breath test.
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The fast-working lefty will face a Padres lineup also minus promising young catcher Yasmani Grandal, suspended for the first 50 games after testing positive for testosterone.
Since 2011, 12 amateur cyclists in America have been sanctioned for testing positive for banned substances or skipping mandatory drug tests, according to U.S. Anti-Doping Agency.
On Saturday, Russian sprinter and cyclist Victoria Baranova was banned from the Games and a Colombian sprinter, Diego Palomeque Echavarria, was provisionally suspended after testing positive for testosterone.
But Christie, who was banned for two years after testing positive for steroids in 1999, wants governing bodies to play an enhanced role in informing testers of athletes' whereabouts.
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