the cells , grown in dulbecco 's modified eagle 's medium with 0.6 mm ca2+ , epidermal growth factor , transferrin , insulin , and na2seo3 , were fibroblast free , exhibited saturation densities similar to those of cells grown in serum-containing medium , and actively incorporated [ 3h ] thymidine into dna , as demonstrated by biochemical and autoradiography assays .
C0016030
fibroblast
C0007634
cells