Found 1 pathways with zero (PubMed) references
* [http://classic.wikipathways.org/instance/WP210_r117045](http://classic.wikipathways.org/instance/WP210_r117045) 'Cytoplasmic ribosomal proteins' in Saccharomyces cerevisiae has zero references;
More details at https://www.wikipathways.org/WikiPathwaysCurator/ReferencesTests/atLeastOneReference