Drug exams and Organic copyright facts provided scientific proof of Armstrong's doping. Retrospective Assessment of stored urine samples from the 1999 Tour de France exposed traces of EPO. Tygart. “Any time We've mind-boggling proof of doping, our mandate will be to initiate the case by way of the method and https://abcnews.go.com/US/lance-armstrong-doping-investigation-widens/story?id=13663557