Petri Dishes (IMAGE) Moscow Institute of Physics and Technology Caption These are petri dishes with fibrin clots extracted from the experimental system one hour after the start of the coagulation processes. Credit Image courtesy of the researchers 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.