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(a) Loading–unloading compressive test and tensile test of PVA/HA (a,d) and PVA/HA/1.5TA (b,e) under different strain values and the calculated dissipated energy (curve area) (c,f) of the PVA/HA and PVA/HA/1.5TA hydrogels during the loading–unloading cycles with different strains.
