title: Relative toxicity of three homologous series of nonionic surfactants in the planarian.
mesh_terms: D000818:Animals; D001693:Biological Transport, Active; D006863:Hydrogen-Ion Concentration; D007928:Lethal Dose 50; D011095:Polyethylenes; D013329:Structure-Activity Relationship; D013500:Surface Tension; D013501:Surface-Active Agents / Q000633:toxicity*; D013997:Time Factors; D014419:Turbellaria / Q000187:drug effects*
chemical_list: D011095:Polyethylenes; D013501:Surface-Active Agents