title: Induction with nitrous acid of dextran sulfate resistance in type 1 poliovirus.
mesh_terms: D003911:Dextrans; D004352:Drug Resistance, Microbial; D006898:Hydroxylamines / Q000494:pharmacology; D009153:Mutagens / Q000494:pharmacology*; D009154:Mutation; D009573:Nitrites / Q000494:pharmacology; D017955:Poliovirus / Q000187:drug effects*; D013431:Sulfates / Q000494:pharmacology
chemical_list: D003911:Dextrans; D006898:Hydroxylamines; D009153:Mutagens; D009573:Nitrites; D013431:Sulfates