The PREP2 (IMAGE) IOS Press Caption Algorithm predicts upper limb functional outcome at three months post-stroke. The four possible upper limb outcomes are color-coded. The colored dots depict the proportion of patients expected to achieve each color-coded outcome, depending on their pathway through the algorithm, based on the results of a CART analysis. Credit The Shirley Ryan Ability Lab, Chicago, Ill., USA 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.