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Components of the artificial niche: elastomeric PGS scaffolds coated with fibrin and platelets constitute the artificial niche. Bone marrow mononuclear cell adhesion, vascular differentiation, and proliferation are mediated by the elasticity of PGS and biochemical signals from fibrin and platelet. PGS, poly(glycerol sebacate). Color images available online at www.liebertonline.com/tea
