title: The determination of picomole levels of 5-hydroxytryptamine and dopamine in Aplysia, Tritonia and leech nervous tissues.
mesh_terms: D000818:Animals; D004298:Dopamine / Q000032:analysis*; D005724:Ganglia / Q000032:analysis; D006651:Histocytochemistry; D007865:Leeches; D008974:Mollusca; D009417:Nerve Tissue / Q000032:analysis*; D009474:Neurons / Q000032:analysis; D012701:Serotonin / Q000032:analysis*
chemical_list: D012701:Serotonin; D004298:Dopamine