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. 2023 Apr 5;18:1809–1821. doi: 10.2147/IJN.S402855

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© 2023 Hann et al.

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Schematic illustrations of (a) the fabrication steps of the 4D smart constructs and (b) the cell therapy process using the 4D construct (morphing from spherical cellularized vehicles to in situ curved tissue patch).