GC-IMS (IMAGE) University of Warwick Caption Figure showing typical GC-IMS output to a vaginal swab. Red spots indicate individual chemicals and machine learning identifies which of these chemicals hold discriminatory information. Credit University of Warwick Usage Restrictions Use only with caption and credit included. 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.