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. 2021 Dec 17;27:562–576. doi: 10.1016/j.omtn.2021.12.026

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© 2021 The Author(s)

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Histological and biomechanical testing of supraspinatus–humerus complex

(A) H&E staining. (B) Immunohistochemical staining of type I collagen. (C) The average optimal density of type I collagen expressed in rat supraspinatus tendon (n = 7 per group). (D) Immunohistochemical staining of type III collagen. (E) The average optimal density of type III collagen expressed in rat supraspinatus tendon (n = 7 per group). (F) Images of the supraspinatus-humerus complex and biomechanical testing. (G) Tendon mechanical properties including maximum load, stiffness, and modulus (n = 7 per group). AOD, average optimal density. ∗p < 0.05.