Bill, sorry for overlooking your question.

On August 23, 2005, L'Équipe, a major French daily sports newspaper, reported on its front page under the headline "The Armstrong Lie" that urine taken from the cyclist during the prologue and five stages of the 1999 Tour de France had tested positive for EPO in recent testing conducted as part of a research project into EPO testing methods. This claim was based on an investigation in which they claimed to be able to match samples from the 1999 Tour that were used to hone the EPO test to Armstrong. (from the Wiki page about Armstrong)

That was what I had in mind.

Wolfgang