<<Disclaimer: Verify this information before applying it to your situation.>> Recently there has been a post or two from some of the major Universities requesting samples for DNA testing. You need to contact these schools and send them a sample! I does not matter if you are on a gf diet or not. All they want is your DNA so they can try to pinpoint the gene(s) that predispose a person to celiac. I have spoken with some of the directors and they are getting very close. I was very surprised, knowing how many people are a part of this list and how FEW samples some of the schools have. If you have not sent, please do so. It does not cost you anything, and it does not hurt. Some of the schools cannot even get started until they get enough samples. I do not have the information on the schools, etc. Check the archives or some of the hosted web pages. One more thing, if you are not willing to give a sample, I better not hear you griping about how hard or unfair the diet is. These schools are trying to help us, but they need our help. Mitchel Laman Cleveland, TN USA