illustration 2 (IMAGE) UT Southwestern Medical Center Caption Robert Haley, M.D. (left) visits with two longtime GWI research supporters, former Sen. Kay Bailey Hutchison and the late Ross Perot, at a campus event in 2006. Credit UT Southwestern Medical Center Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.