Drug exams and Organic copyright info supplied scientific proof of Armstrong's doping. Retrospective analysis of saved urine samples in the 1999 Tour de France disclosed traces of EPO. The proof in opposition to Lance Armstrong arose from disclosures manufactured to USADA by greater than a dozen witnesses who agreed to https://abcnews.go.com/US/lance-armstrong-doping-investigation-widens/story?id=13663557