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Mean area of blobs at grey-scale level typical for muscle tissue. Mean area of blobs at grey-scale level typical for muscle tissue for m. supraspinatus right, m. supraspinatus left, and m. vastus lateralis, n = 9. Mean values (S.E.). "●" indicates results from the shoulder patient, when these results exceeded the 25%–75% quartiles for the healthy group. "*" indicates significant differences (p < 0.05) between measuring sites.
