(a)
(b)
(c)
(d)
Figure 1: Histopathologic changes of ulcers in Alpha-treated group on day 7 showed ulceration, chronic inflammation, and granulation tissue formation: (a) ×400 and (b) ×400. Histopathologic changes in lesions of the same group on day 21 showed full reepithelialization and neovascularization: (c) ×40 and (d) ×100.