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2015-2-24 · 2-2. Epidermal Growth Factor (EGF) Epidermal growth factor (EGF), is a low molecular weight, 53-amino acid polypeptide that stimulate cell growth and proliferation. It was first isolated from the male mouse submandibular glands. In the human body, EGF is present in milk, saliva, urine, blood platelet, macrophages, tears
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