Graph (IMAGE) Radiological Society of North America Caption This graph shows mean cognitive test scores at baseline and follow-up in the intervention group and wait-list group. Bars indicate raw scores for cognitive test results. Paired t test P values are reported only for significant differences between baseline and follow-up. Credit Radiological Society of North America Usage Restrictions May use with credit. 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.