The following DataNodes have no identifier: 1
http://classic.wikipathways.org/instance/WP3237_r117624 http://rdf.wikipathways.org/Pathway/WP3237_r117624/DataNode/a85d9 (Thyroidperoxidase
)
More details at https://www.wikipathways.org/WikiPathwaysCurator/DataNodesTests/dataNodesWithoutIdentifier