APC in Hemophilia (IMAGE) American Society of Hematology Caption Molecular model of APC bound to the reactive center loop of the modified serpin (yellow sticks). Credit © 2016 by The American Society of Hematology Usage Restrictions © 2016 by The American Society of Hematology 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.