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Walker, Ulrich A., Philip J. Clements, Yannick Allanore, Oliver Distler, Chester V. Oddis, Dinesh Khanna, and Daniel E. Furst. "Muscle Involvement in Systemic Sclerosis: Points to Consider in Clinical Trials." Rheumatology (Oxford) 2017.

Walker, Ulrich A., et al. "Muscle Involvement in Systemic Sclerosis: Points to Consider in Clinical Trials." Rheumatology (Oxford) 2017.