an electron microscope study of heterokaryons and synkaryons , obtained after the treatment of suspension of human embryonic fibroblasts and cultured fibroblasts of chinese hamster ( clone m151 ) with polyethylene glycol ( pec , m. v. 6000 ) has shown that in 15 minutes after the administration of peg , the cell agglutination and disappearance of plasma membranes between cells takes place .
C0016030
fibroblasts
C0007634
cells