Enrolling Tibetan Participants (image) University of Utah Health Sciences Caption Josef Prchal, M.D., (at computer) enrolls Tibetans into the study in this image. Credit Tsewang Tashi, M.D. Usage Restrictions Include photo credit 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.