The following DataNodes have no identifier: 1
http://classic.wikipathways.org/instance/WP5284_r129247 http://rdf.wikipathways.org/Pathway/WP5284_r129247/DataNode/aea48 (avĪ²6)
More details at https://www.wikipathways.org/WikiPathwaysCurator/DataNodesTests/dataNodesWithoutIdentifier