 Thank you. Is there testing to see if he has the gene? Are you able to find that out? He's got the marker. You said he's got the marker. Well, there is a test available. I mean, you get half of your genes from one parent and half from another, so that's where we know there's a 50-50 chance. And there is a test to identify one of the 20 most common. Oh, so there's not a singular marker.