Salk Institute -- Hemophilia B -- HLCs (IMAGE) Salk Institute Caption Caption: Left two panels: Hepatocyte-like cells (HLCs) differentiated from the stem cells of patients with hemophilia B show very low levels of clotting factor IX, or FIX, shown in white. Right two panels: After treating these same cell lines with a gene correction tool, FIX increased to healthy levels. Credit Salk Institute Usage Restrictions with credit and related coverage. 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.