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[DOI] [PMC free article] [PubMed] [Google Scholar] 129.Sun J, Shen X, Li Y, Guo Z, Zhu W, Zuo L, Zhao J, Gu L, Gong J, Li J

This becomes noticeable in most people in their 30s and 40s

What changes with an optimized protocol is the quality of that timeline

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Wound-healing factors secreted by epidermal keratinocytes and dermal fibroblasts in skin substitutes
