Dr. Juan P. Casas (IMAGE) Veterans Affairs Research Communications Caption Dr. Juan P. Casas, a physician epidemiologist, led the study, which called for prioritizing clinical trials of drugs targeting two proteins. Credit Frank Curran 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.