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Sustained in vitro release of VEGF and HGF from the coacervate for 3 weeks into DI water. VEGF and HGF were combined, then mixed with heparin followed by PEAD. After coacervate formed, tubes were centrifuged and supernatant was collected. GF amount was then quantified by sandwich ELISA at the specific time points. Bars indicate means ± SD.
