John Bischof, University of Minnesota (IMAGE) University of Minnesota Caption Senior author of the study Professor John Bischof said that after the tissues were rewarmed and tested for viability, they displayed no signs of harm, unlike control samples rewarmed slowly over ice or those using convection warming. Credit University of Minnesota 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.