Constantine Simintiras (IMAGE) University of Missouri-Columbia Caption Constantine Simintiras and his colleagues in Thomas Spencer's lab have found a non-invasive way to study fluid produced in the uterus during pregnancy. Credit University of Missouri. 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.