X-Ray of a Proximal Femur (IMAGE) North Carolina State University Caption Forensic researchers have for the first time established science-based standards for identifying human remains based on X-rays of an individual's spine, upper leg (such as the proximal femur image seen here) or the side of the skull. Credit Ann Ross Usage Restrictions Image credit must be given. 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.