Found 1 pathways with zero (PubMed) references
* [http://classic.wikipathways.org/instance/WP723_r117953](http://classic.wikipathways.org/instance/WP723_r117953) 'Wnt signaling pathway and pluripotency' in Mus musculus has zero references;
More details at https://www.wikipathways.org/WikiPathwaysCurator/ReferencesTests/atLeastOneReference