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. 2019 May 21;11(2):17. doi: 10.1038/s41368-019-0050-5

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — The construction and application of osteochondral microtissues composed of chondrogenic cell sheets and osteogenic cell sheets based on the magnetically controlled approach. a The structure of the normal mouse knee joint with the cartilage–bone interface labelled by a yellow dotted line. b Schematic illustration of the process used to construct an integrated osteochondral tissue via the magnetically controlled method. c After implantation for 1 week, mCherry+ chondrocytes and GFP+ osteoblasts were observed using a fluorescence microscope. d The fluorescence intensity along the yellow arrow was recorded. (Adapted from ref. ⁶⁸ with permission.)