title: Letter: Narcolepsy: REM sleep suppression by L-dopa.
mesh_terms: D006801:Humans; D007980:Levodopa / Q000494:pharmacology* / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009290:Narcolepsy / Q000188:drug therapy*; D012895:Sleep, REM / Q000187:drug effects*
chemical_list: D007980:Levodopa