SPEAKER 1: ECP has been known to be a good treatment for erythrodermic CTCL for many years. Originally, there were only a few ECP machines in any particular country, so patients had to travel a long way. But with the application of photopheresis in graft versus host disease, a lot more machines have now started to appear. And so patients often don't have to travel quite so far, and could possibly be treated in hematology departments where CTCL is not frequently treated, and not especially sent for, but they have a machine for GVHD.