Rickettsiae in ophthalmology.
D000906:Antibodies; D003168:Complement Fixation Tests; D005060:Europe; D005128:Eye Diseases / Q000209:etiology* / Q000276:immunology; D006386:Hemagglutination Tests; D006801:Humans; D009426:Netherlands; D012282:Rickettsia Infections / Q000276:immunology
D000906:Antibodies