Left digit bias (IMAGE) Michigan Medicine - University of Michigan Caption When organ procurement organizations and transplant centers accept or select organs, they sometimes display a form of ageism known as left digit bias. Credit Justine Ross/Michigan Medicine Usage Restrictions N/A License Original 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.