Figure 1 (IMAGE) American Gastroenterological Association Caption Figure 1 combines screening and diagnosis because of the overlap between these 2 steps. The evidence and rationale for each of the Pathway’s individual steps are described below. Credit American Gastroenterological Association 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.