DOI:
10.1055/s-00028422
Ultrasound International Open
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References
Arnett FC, Edworthy SM, Bloch DA, McShane DJ, Fries JF, Cooper NS. et al.
The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis.
Arthritis Rheum. 1988;
31: 315-324
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