Timothy Hammond, Duke University (image) NASA/Johnson Space Center Caption This is Timothy Hammond, M.B., B.S., Department of Veterans Affairs and Duke University School of Medicine in Durham North Carolina. Credit Timothy Hammond, M.B., B.S. Usage Restrictions None 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.