B-cell Clone Atlas (IMAGE) University of Pennsylvania School of Medicine Caption A model of the human body showing distinct B cell clonal networks in the gastrointestinal tract and in the blood-rich organs such as bone marrow, spleen, and lung. Credit Alexander H. Farley 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.