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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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(a) The comparison of the shape recovery rate of the 4D strip at two different temperatures, 36 °C and 45 °C. Data are the mean ± standard deviation; n=9, *p<0.05 and **p<0.01 compared to the shape recovery rate data at 36 °C at each time point. (b) Sequential images of the shape recovery process of the 4D strip at 36 °C. Scale bars, 1 cm.