Fig. 5From: Effect of bFGF and fibroblasts combined with hyaluronic acid-based hydrogels on soft tissue augmentation: an experimental study in ratsMicroscopic view of the hyaluronan gel filler (HGF) groups stained with Masson’s trichrome stain. There was no soft tissue staining inside the filler material (Masson’s trichrome; original magnification, × 40). a Hyaluronan gel filler alone, b hyaluronan gel filler combined with bFGF, c hyaluronan gel filler combined with fibroblasts, and d hyaluronan gel filler mixed with bFGF and fibroblastsBack to article page