title: [Sleep-promoting-substance in the brain and its bioassay].
mesh_terms: D000818:Animals; D003400:Astacoidea; D001681:Biological Assay / Q000379:methods; D001933:Brain Stem / Q000032:analysis*; D051379:Mice; D010455:Peptides / Q000302:isolation & purification*; D012890:Sleep / Q000502:physiology*; D012892:Sleep Deprivation
chemical_list: D010455:Peptides