Canada

Lance Armstrong defiantly introduced himself to a cancer conference in Montreal today as a seven-time Tour de France champion.

The U.S. Anti-Doping Agency has stripped the controversial cyclist of his titles after concluding he used banned substances.

But aside from his opening remarks about the Tour, Armstrong steered clear of the doping controversy.

Instead, he focused on his experience as a cancer survivor and the work of his charitable foundation.

Armstrong says he refuses to be distracted from the fight against cancer.

Armstrong was taking part in a panel discussion at the World Cancer Congress in Montreal. He has invited Montrealers to join him on a 7.5-kilometre run this evening.