Found 1 pathways with zero (PubMed) references
* [http://classic.wikipathways.org/instance/WP436_r118434](http://classic.wikipathways.org/instance/WP436_r118434) 'Glycogen metabolism' in Caenorhabditis elegans has zero references;
More details at https://www.wikipathways.org/WikiPathwaysCurator/ReferencesTests/atLeastOneReference