Microscopic Image of the Process of Blood Formation (image) NIH/National Heart, Lung and Blood Institute Share Print E-Mail Caption Landscape of the lineage fate (natural environment) of unperturbed haematopoiesis (the process of mature blood and immune cell production). Credit Courtesy of the Stem Cell Program, Boston Children's Hospital. Usage Restrictions None 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.