撤稿声明: Intra-articular injection in the knee of adipose derived stromal cells (stromal vascular fraction) and platelet rich plasma for osteoarthritis (Retraction of Vol 15, art no 141, 2017)

This article has been retracted. Please see the Retraction Notice for more detail: https://doi.org/10.1186/s12967-021-02852-z

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The article has been retracted. Please refer to the Retraction Notice for more details: https://doi.org/10.1186/s12967-021-02852-z