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Pfeil, Alexander, Peter Oelzner, Diane M. Renz, Andreas Hansch, Gunter Wolf, and Joachim Böttcher. "Is There a Role for Digital X-ray Radiogrammetry As Surrogate Marker for Radiological Progression and Imaging of Structural Integrity in Rheumatoid Arthritis?" BMC Musculoskelet Disord 2015.

Pfeil, Alexander, et al. "Is There a Role for Digital X-ray Radiogrammetry As Surrogate Marker for Radiological Progression and Imaging of Structural Integrity in Rheumatoid Arthritis?" BMC Musculoskelet Disord 2015.