Found 1 pathways with zero (PubMed) references
* [http://classic.wikipathways.org/instance/WP62_r117312](http://classic.wikipathways.org/instance/WP62_r117312) 'Mitochondrial tRNA synthetases' in Saccharomyces cerevisiae has zero references;
More details at https://www.wikipathways.org/WikiPathwaysCurator/ReferencesTests/atLeastOneReference