Dr. Joseph Leach (IMAGE) UT Southwestern Medical Center Caption Dr. Joseph Leach, associate professor of otolaryngology, led research showing that absorbable sutures cleansed with hydrogen peroxide dramatically lost tensile strength. 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.