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(a) SEM image of lyophilized MPEG-pDHA (5000–3000) hydrogel. (b) MPEG-pDHA (5000–5000) hydrogel extrusion through a 26-gauge needle. (c) Seroma volumes measured using a rat mastectomy model following treatment with various MPEG-pDHA formulations and a saline control. Figures are reprinted from ref 179 with permission. Copyright 2010 National Academy of Sciences, USA.
