title: 5-Hydroxyindoles in mongolism and hydrocephalus.
mesh_terms: D004314:Down Syndrome / Q000097:blood / Q000134:cerebrospinal fluid*; D006801:Humans; D006849:Hydrocephalus / Q000097:blood / Q000134:cerebrospinal fluid*; D006897:Hydroxyindoleacetic Acid / Q000134:cerebrospinal fluid*; D007223:Infant; D012701:Serotonin / Q000097:blood
chemical_list: D012701:Serotonin; D006897:Hydroxyindoleacetic Acid