Found 1 pathways with zero (PubMed) references
* [http://classic.wikipathways.org/instance/WP498_r116891](http://classic.wikipathways.org/instance/WP498_r116891) 'Mitochondrial long chain fatty acid beta-oxidation' in Danio rerio has zero references;
More details at https://www.wikipathways.org/WikiPathwaysCurator/ReferencesTests/atLeastOneReference