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Cell morphology and cell proliferation of human aorta vascular smooth muscle cells (HAVSMCs)/human umbilical vein endothelial cells (HUVECs) co-cultured on silk fibroin (SF) films. (A) HAVSMCs on tissue culture plate (TCP); (B) HAVSMCs on film; (C) HUVECs on TCP; (D) HUVECs on film; (E) HAVSMC/HUVEC co-cultures on film and (F) DNA contents, Bar = 200 μm, ** p < 0.01.
