title: Chain reactions.
authors: Nigel
authors: N
authors: Williams
mesh_terms: D000383:Agriculture / Q000191:economics / Q000379:methods*; D000818:Animals; D015386:Hazardous Substances; D006540:Herbicides; D030821:Plants, Genetically Modified / Q000502:physiology*
chemical_list: D015386:Hazardous Substances; D006540:Herbicides