Via: VeloNews.com

Cyclists can still race the Tour de France on the illegal drug EPO without testing positive, a top Australian doping scientist has revealed.

Dr. Mike Ashenden, project manager of the international consortium Science and Industry Against Blood Doping, told The Saturday Daily Telegraph that an unreleased study shows how riders can still get away with EPO use four years after testing was introduced for the endurance-boosting protein hormone.

“There have been persistent rumours over the past years that athletes have learned to manipulate their EPO injections to escape the urine test,” Ashenden said.

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It sounds like if you had an expert physician on your side during the tour you definitley could have used EPO and gotten away with it. They did a four week study on two people and were able to keep thier hematocrit (the blood’s percentage of oxygen carrying red blood cells) levels high but low enough to pass the tests.