Ovarian Stem Cells (IMAGE) Michigan Medicine - University of Michigan Caption These are ovarian tumors grown with cancer-associated mesenchymal stem cells. Credit University of Michigan Health System Usage Restrictions For use in conjunction with stories about this research 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.