the concentrations of the monoamine metabolites , 5-hydroxyindoleacetic acid , 3,4-dihydroxyphenylacetic acid , and homovanillic acid as well as of the l-dopa metabolite , 3-methoxy-4-hydroxyphenylalanine in the cerebrospinal fluid were linearly correlated with the concentrations of these metabolites in the brain .
C0086045
concentrations
C0006104
brain