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  1. 2019New_Mesh_Tree_Hierarchy.txt 
    https://www.nlm.nih.gov/.../download/2019New_Mesh_Tree_Hierarchy.txt
    ... 240 Echothiophate Iodide D02.705.400.625.300 Fenitrothion D02.705.400.625.320 Fenthion D02.705. ... 240 Echothiophate Iodide D02.705.539.345.300 Fenitrothion D02.705.539.345.320 Fenthion D02.705. ...
  2. pdfNLM Technical Bulletin, no.21-32 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/21-32-1971.pdf
    ... dyfonate EPN (non-MeSH) ethion ethoate-methyl famphur fenitrothion heptachlor epoxide Lindane (BENZENE HEXACHLORIDE) methoxychlor Milbex mirex ...