Lum, G A cluster of culture positive gonococcal infections but with false negative cppB gene based PCR. [electronic resource] - Sexually transmitted infections Oct 2005 - 400-2 p. digital Publication Type: Journal Article ISSN: 1368-4973 Standard No.: 10.1136/sti.2004.013805 doi Subjects--Topical Terms: Bacterial Outer Membrane Proteins--geneticsCluster AnalysisFalse Negative ReactionsGonorrhea--geneticsHumansNeisseria gonorrhoeae--geneticsPolymerase Chain Reaction--methods