(IMAGE) Tokyo Medical and Dental University Caption PRS of patients with severe radiographic progression was significantly higher than that of patients with non-severe progression. Credit Department of Genomic Function and Diversity, TMDU Usage Restrictions None 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.