title: [Detection of polychlorinated biphenyls (PCB) toxicity by colony formation methods using HeLa cells].
mesh_terms: D003114:Colony-Forming Units Assay; D006367:HeLa Cells; D006801:Humans; D011078:Polychlorinated Biphenyls / Q000633:toxicity*
chemical_list: D011078:Polychlorinated Biphenyls