1.   Armstrong issued a statement a week ago denying that he had ever used EPO, a performance-enhancing drug that is banned in endurance sports.

2.   Because it enhances oxygen-carrying capacity, EPO is also believed to be in widespread use in such endurance sports as cycling and distance running.

3.   Both drugs increase the amount of oxygen in the bloodstream and would give competitors in endurance sports such as cycling, running, and swimming an enormous advantage.

4.   EPO is suspected of widespread use in endurance sports, and federations for cycling, speed skating and biathlon already use the urine test.

5.   EPO, considered to be a real magic bullet, is thought to be widely used by athletes in cycling, distance running, swimming and other endurance sports.

6.   In some sports, especially endurance sports, it will take six years to get there.

7.   It multiplies the red blood corpuscles that carry oxygen to muscles and is mainly used in endurance sports.

8.   Keeping the field wet helps make this an endurance sport, and games are usually heavy on defense and low on scoring.

9.   Managing pain is a part of endurance sports, perhaps even the point.

10.   Most athletes who need some help in endurance sports, however, begin with a pretty basic demand.