Professor Vanessa Hayes (IMAGE) University of Sydney Caption Professor Vanessa Hayes examining a blood sample from a prostate cancer patient that was used in the study. Credit Stefanie Zingsheim, University of Sydney Usage Restrictions For use only in regards to reporting on Professor Hayes' Nature or Genome Medicine studies. License Original 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.