title: Polychlorinated biphenyls in carbonless copying paper.
mesh_terms: D001713:Biphenyl Compounds / Q000032:analysis*; D002849:Chromatography, Gas; D010209:Paper / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis
chemical_list: D001713:Biphenyl Compounds; D011078:Polychlorinated Biphenyls