Armstrong last received chemotherapy EPO in late 1996. Apparently speaking from his knowledge of conventional EPO testing, Armstrong agrees that traces of 1996 synthetic EPO should not have been present in his 1999 urine. There are now tests to distinguish natural from synthetic EPO. But it remains an unresearched scientific question whether the sensitivity of the experimental new method could detect use of synthetic EPO from three years previously. By scientific analogy, the  polymerase chain reaction process can detect as little as a single molecule of DNA. Bisceglia said that USA Cycling, the governing body in the United States, lacks the officially required evidence, and therefore will not investigate the L'Équipe report. 
Armstrong last received chemotherapy EPO in late 1996. Apparently speaking from his knowledge of conventional EPO testing, Armstrong agrees that traces of 1996 synthetic EPO should not have been present in his 1999 urine. There are now tests to distinguish natural from synthetic EPO. But it remains an unresearched scientific question whether the sensitivity of the experimental new method could detect use of synthetic EPO from three years previously. By scientific analogy, the w:Polymerase chain reaction| polymerase chain reaction process can detect as little as a single molecule of DNA. Bisceglia said that USA Cycling, the governing body in the United States, lacks the officially required evidence, and therefore will not investigate the L'Équipe report. Related news
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w:Polymerase chain reaction|
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