Figure 3

Haematoxylin and eosin staining of submandibular glands after wound creation. Original magnification ×25, ×100. (a-j) Collagen gel; (k-t) collagen gel with bFGF. At AOD 5, AOD 7, AOD 10 and AOD 14, the collagen gel was clearly reduced in size with time. AOD, after operation day; bFGF, basic fibroblast growth factor.