I work in the Nephrology portion of the the healthcare industry...I have so for 15 years. I have managed a dialysis clinic for the last 10 years. The dialysis industry is by far the largest consumer of EPO. Virtually (1.5 million worldwide) every hemodialysis pt takes a dose of EPOGEN at least once per week for the remainder of their life (unless they get a transplant). I have attended coutnless Amgen seminiars. In the last few years amgen has developed a product called darbepoeitin (also known as ARANESP). Why is this important to cyclists?Well, Darbopoeitin is very long acting compared to EPO and a much much better drug. One of the unanticipated characteristics of ARANESP is that it is highly detectable. This new drug will likely replace EPOGEN (which is EPO) EPO is harder to detect becuase of fast clearance. Not so with its replacement. EPO will soon be a drug of the past and dopers will at least have one less option to cheat.