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. 2018 Jan 27;30(1):140–144. doi: 10.1589/jpts.30.140

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2018©by the Society of Physical Therapy Science. Published by IPEC Inc.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)

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Fig. 1. — Histological sections (×400) of terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick-end labeling (TUNEL) staining (a), and proliferating cell nuclear antigen (PCNA) staining (b) in ACL insertion after 2 weeks of knee immobilization. Brown cells (arrows) are TUNEL-positive chondrocytes and PCNA-positive chondrocytes. The TUNEL-positive and PCNA-positive rates were calculated by dividing positive cells by the total number of chondrocytes.