Relationship of Systemic Lupus Erythematosus (SLE) to Rheumatoid Arthritis (RA), Discoid Lupus Erythematosus (DLE) and Sjögren's Syndrome: A Clinical Study.
In clinical and laboratory examinations carried out since 1954 we found the combination of SLE, RA, DLE and Sjögren's syndrome in 33% of 771 patients. In 61% of our 171 LE cell-positive cases there was classical RA which is a further proof of the close connection between these two diseases.
First Department of Medicine, University Medical School, Szeged, Hungary.
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