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  1. pdfNLM Technical Bulletin, no.21-32 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/21-32-1971.pdf
    ... hydrocarbons such as dibromochloropropane, CARBON TETRACHLORIDE, ethylene dichloride, methyl bromide, etc. They are Indexed HYDROCARBONS, HALOGENATED (IM), an ...
  2. pdfNLM Technical Bulletin, no.93-104 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/93-104-1977.pdf
    ... levomoramide 1evophenacylmorphan levorphan metazocine methyldesorphine methyldihydromorphine morpheridine morphine methyl bromide morphine methylsulfonate morphine-N-oxide myrophine -17- NLM ...