The simple answer is, yes, we can always do more. There has been a huge amount of work done in this area. I think society owes the Jehovah's Witnesses a debt, because they have driven surgeons to develop procedures that use less blood. They have changed the mindset around blood transfusion.
Essentially two decades later, most developed countries in the world have seen a dramatic decrease in the amount of blood that's transfused annually. It really is the culmination of better surgical techniques, some better drugs, and the thinking about who gets a transfusion—namely, that it is a medical procedure, and you only need to do it if it's absolutely necessary. I think the mindset about blood transfusion has shifted quite a bit in the way that physicians use blood products. We're probably one of the only businesses I can think of that's actively trying to not sell our products.