Tracking clonal hematopoiesis (IMAGE) Boston Children's Hospital Caption Zebrafish red blood cells in the peripheral blood of zebrafish. Normal fish, with varied blood cell lineages, are shown at the top, and mutant zebrafish with clonal hematopoiesis at bottom. Credit Jonathan Henninger, PhD, and Serine Avagyan, MD, PhD, Zon lab, Boston Children’s Hospital. Usage Restrictions please credit as indicated 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.