Nadzeya Ostapchuk won the shot put on August 6, a day after giving a urine sample.
The long awaited drug test on Floyd Landis' backup urine sample begins today in a French lab.
At the retrial, the court accepted the explanation that O'Sullivan was "too depressed" to provide a urine sample.
Researchers took a single urine sample from hospitalized heart patients, found normal BPA trace amounts, and concluded BPA did it.
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Scarlets lock MacLeod was suspended in October from competitive action after a urine sample he supplied in January showed higher-than-permitted levels of testosterone.
MacLeod was banned from all rugby earlier this season after a urine sample he provided contained a higher than permitted level of testosterone.
And - as in the case of middle distance runner Diane Modahl - incorrect storing of a urine sample may alter its chemical components.
He was found to have had excessive levels of Norandrosterone in a urine sample taken during the Tour of Austria in June last year.
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If Landis' backup urine sample is positive - and the backup or B-tests often confirm the original - Landis could be stripped of his title.
Braun detailed how the urine sample he provided on Oct. 1, the day the Brewers opened the playoffs, was not delivered to Federal Express until Oct. 3.
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They also made several changes in the wake of NL MVP Ryan Braun having his 50-game suspension overturned based on the chain-of-custody being broken with this collected urine sample.
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Most notably, she and her colleagues measured only one urine sample for each child, and therefore weren't able to track whether the levels of pesticide byproducts were constant, or whether the association between exposure and ADHD changed over time.
One reason to join the sceptics is that, just as the testers have become more expert and intrusive they now watch an athlete give his or her urine sample so drug users and their suppliers have become more skilled at evading them.
During the hearing, Braun's side challenged the chain of custody from the time the urine sample was collected by Comprehensive Drug Testing Inc. to when it was sent, nearly 48 hours later, to a World Anti-Doping Agency-certified laboratory in Montreal, two people familiar with the case said.
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Every day she heads to the panda enclosure to collect a sample of Tian Tian's urine before riding across Edinburgh by bus.
He said the sample was stored in his basement office in areas sufficiently cool enough to store urine.
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