Found 1 pathways with zero (PubMed) references
* [http://classic.wikipathways.org/instance/WP220_r117334](http://classic.wikipathways.org/instance/WP220_r117334) 'Ribose and deoxyribose phosphate metabolism' in Saccharomyces cerevisiae has zero references;
More details at https://www.wikipathways.org/WikiPathwaysCurator/ReferencesTests/atLeastOneReference