title: Studies on antigenic relationships within the psittacosis-lymphogranuloma group of viruses.
authors.forename: E
authors.initials: E
authors.lastname: JOHN
authors.forename: F B
authors.initials: FB
authors.lastname: GORDON
mesh_terms: D002690:Chlamydia Infections; D002692:Chlamydia trachomatis; D002691:Chlamydophila psittaci; D008219:Lymphogranuloma Venereum; D009956:Psittacosis; D014780:Viruses