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Preparation and injection of autologous fat tissue-derived stromal vascular fraction. (A) Harvested autologous adipose tissues. (B) Prepared stromal vascular fraction (SVF) mixtures for injection after the refinement. (C) Injection sites and needling directions of SVF mixtures. Circles indicate entry points of SVF injections, and arrows indicate directions of inserted needles using retro-tracing technique.
