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. 2023 Jul 18;10:1193830. doi: 10.3389/fmed.2023.1193830

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Copyright © 2023 Li, Wang, Pan, Zhang, Zhang, Ban, Song, Wang, He, Zeng, Tang and Liu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Scatter plot showing the correlation between the clinical Hemophilia Joint Health Score (HJHS 2.1) and ultrasound (US) score for the knee.