 So that's why they always do a wide circle when they cut it out. So they try to do a wide excision on any type of cancer. And the colon is one of those that that's kind of convenient because if it's in the large intestine, which most of them are, the blood supply to the large intestine, you can't cut out just a little bit. You more or less have to take a whole segment of the colon because if you interrupt the blood supply to that part, it's going to interrupt the blood supply to this whole part. So we have to take that whole part out.