Obviously, you said this is well-known literature that glucose and glutamine are both source...cancer cells love them. It's like crack for cancer cells, both glucose and glutamine, and I've done a lot of studies on various types of cancer cells and these are in vitro. So this is not in an animal model where I can, I withdraw glucose and the cancer cells will proliferate slower, some will die, but if there's glutamine there... Glutamine withdrawal would kill them within 24 hours, but.