title: Serotonin concentration of the cerebrospinal fluid in CNS tumours.
mesh_terms: D001932:Brain Neoplasms / Q000134:cerebrospinal fluid*; D006801:Humans; D012701:Serotonin / Q000134:cerebrospinal fluid*; D013120:Spinal Cord Neoplasms / Q000134:cerebrospinal fluid*
chemical_list: D012701:Serotonin