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[Elaboration of clinico-laboratory criteria of the Mycoplasma variants of rheumatoid arthritis in children].

To develop clinical and laboratory criteria for the differential diagnosis of Mycoplasma-induced arthritides in 78 children with documented rheumatic arthritis (RA), a comprehensive study involving microbiological, immunological, and clinical tools has been performed. Some specific signs of the clinical course of Mycoplasma-induced RA have been defined. However, a differential diagnosis of Mycoplasma-induced arthritis may be made on the basis of a comprehensive study of a patient.