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Plot of matched specimens PRUJ and DRUJ surface areas demonstrating average PRUJ/DRUJ ratio of 1.02. Each specimen pair is represented by one dot with several pairs showing as superimposed (diamonds). The line of equality (dashed line) represents the theoretical situation where articulating surface areas are exactly the same as one another. Proximal radioulnar joint = PRUJ; distal radioulnar joint = DRUJ.
