This dendrogram visualizes CAR-T therapeutic targets, grouping them by cancer type into two major categories: hematologic malignancies and solid tumors. The hierarchical tree uses a d3.cluster layout with linkHorizontal paths to connect parent nodes to their children. Text labels are positioned along the tree, with font sizes scaled inversely by depth. The visualization is rendered as SVG using D3 v5, with data loaded from a JSON file.