Found 1 pathways with zero (PubMed) references
* [http://classic.wikipathways.org/instance/WP380_r117293](http://classic.wikipathways.org/instance/WP380_r117293) 'Fatty acid elongation, saturated' in Saccharomyces cerevisiae has zero references;
More details at https://www.wikipathways.org/WikiPathwaysCurator/ReferencesTests/atLeastOneReference