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Wound healing with gel 96% on day two ( A), day four ( B), and day seven ( C), as determined using histological preparations with hematoxylin–eosin staining at 40× magnification. Blue arrows indicate the epithelium, red arrows indicate the epidermis, yellow arrows indicate the papillary stratum, green arrows indicate the reticular stratum, and orange arrows indicate adipose layers. Observation of angiogenesis was carried out on the papillary and reticular dermal layers of the stratum.
