| http://www.w3.org/ns/prov#value | - Research has also been centered on developing surgical glues, sealants and dressing, artificial skin and growth factors such as transforming growth factors (TGF-??), fibroblast growth factor (aFGF and bFGF), platelet-derived growth factor (PDGF), epidermal growth factor (EGF), insulin-like growth factors (IGF-I and IGF-II) and interleukins (IL-1 and IL-2).
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