<p>The file combinations that BrainNet Viewer accepts include the following: (A) brain surface only; (B) nodes only; (C) brain surface with nodes; (D) nodes and edges; (E) brain surface with nodes and edges; (F) brain surface and volume files for volume-to-surface mapping; (G) brain surface, nodes and volume files for volume-to-surface mapping with nodes; (H) brain surface, nodes, edges and volume files for volume-to-surface mapping with nodes and edges; and (I) brain surface and volume files for regions of interest construction.</p