Parneet Grewal headshot (IMAGE) Medical University of South Carolina Caption Parneet Grewal, M.D., is an assistant professor of vascular neurology at MUSC and the senior author on the paper. Credit MUSC Health Usage Restrictions use wiht credit License Original 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.