Lead Researcher Dr Priyanka Sagar (IMAGE) Westmead Institute for Medical Research Caption Lead researcher Dr Priyanka Sagar looking into a microscope Credit The Westmead Institute for Medical Research Usage Restrictions Image for use with article only 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.