<HTTP://PATHWAYCOMMONS.ORG/PSI2BP#RXR-missing_pmid> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.biopax.org/release/biopax-level3.owl#RelationshipXref> .
<HTTP://PATHWAYCOMMONS.ORG/PSI2BP#RXR-missing_pmid> <http://www.biopax.org/release/biopax-level3.owl#db> "doi"^^<http://www.w3.org/2001/XMLSchema#string> .
<HTTP://PATHWAYCOMMONS.ORG/PSI2BP#RXR-missing_pmid> <http://www.biopax.org/release/biopax-level3.owl#id> "missing_pmid"^^<http://www.w3.org/2001/XMLSchema#string> .
<HTTP://PATHWAYCOMMONS.ORG/PSI2BP#RXR-missing_pmid> <http://www.biopax.org/release/biopax-level3.owl#relationshipType> <HTTP://PATHWAYCOMMONS.ORG/PSI2BP#_3088297646888788269> .