Patient Cohort Selection Process (image) Radiological Society of North America Share Print E-Mail Caption This flow diagram shows the patient cohort selection process. Credit Radiological Society of North America Usage Restrictions May use with credit. Share Print E-Mail 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.