title: Chlamydia pneumoniae--a new important respiratory pathogen.
authors.forename: P
authors.initials: P
authors.lastname: Saikku
mesh_terms: D002689:Chlamydia / Q000302:isolation & purification / Q000472:pathogenicity; D002690:Chlamydia Infections / Q000175:diagnosis / Q000382:microbiology*; D003937:Diagnosis, Differential; D006801:Humans; D009894:Opportunistic Infections / Q000175:diagnosis / Q000382:microbiology; D011014:Pneumonia / Q000175:diagnosis / Q000382:microbiology*; D013183:Sputum / Q000382:microbiology