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Representative light microphotographs of macroporous CPEGMC hydrogel and CPEGMC/HA composite thin sections (10 μm). A) CPEGMC; B) CPEGMC/HA(30) composite; C) CPEGMC/HA(45) composite; and D) CPEGMC/HA(60) composite. The black dots denote the HA micro-particles within the polymer matrix. The white spaces represent void pore spaces.
