Zhitova, E I [Diagnostic significance of low titers of the complement fixation reaction with some antigens]. [electronic resource] - Zhurnal mikrobiologii, epidemiologii i immunobiologii Feb 1971 - 72-5 p. digital Publication Type: Journal Article ISSN: 0372-9311 Subjects--Topical Terms: Complement Fixation TestsCross ReactionsHumansPsittacosis--diagnosisQ Fever--diagnosisToxoplasmosis--diagnosisTyphus, Epidemic Louse-Borne--diagnosis